diff --git a/config.lock.yaml b/config.lock.yaml
index 1e89416..9890a8e 100644
--- a/config.lock.yaml
+++ b/config.lock.yaml
@@ -9,7 +9,7 @@ hashlib: bc9c2f8dd7bbc72f47ccab0ce1111d40259c49bc
 hashlib_codecs: 2a966c37c3b9b1f5541ae88e99ab34acf3fc968b
 introduction_screen: 4a90e557630b28834479ed9c64a9d2d0185d8e48
 libsignal_protocol_dart: c95a1586057022acdbb9c76b1692d94cc549bcc7
-lottie: 4f1a5a52bdf1e1c1e12fa97c96174dcb05419e19
+lottie: 127bc29f2c6bd8b32ec4064a09e54e6b31cd0a88
 mutex: 84ca903a3ac863735e3228c75a212133621f680f
 no_screenshot: fbfa2ed7ec4db782797fa6a7de8f207a2cba00bb
 optional: 71c638891ce4f2aff35c7387727989f31f9d877d
diff --git a/lottie/lib/src/animation/content/base_stroke_content.dart b/lottie/lib/src/animation/content/base_stroke_content.dart
index 789657d..6999a4d 100644
--- a/lottie/lib/src/animation/content/base_stroke_content.dart
+++ b/lottie/lib/src/animation/content/base_stroke_content.dart
@@ -149,7 +149,7 @@ abstract class BaseStrokeContent
     var alpha = ((parentAlpha / 255.0 * _opacityAnimation.value / 100.0) * 255)
         .round();
     paint.setAlpha(alpha.clamp(0, 255));
-    paint.strokeWidth = _widthAnimation.value * parentMatrix.getScale();
+    paint.strokeWidth = _widthAnimation.value;
     if (paint.strokeWidth <= 0) {
       // Android draws a hairline stroke for 0, After Effects doesn't.
       L.endSection('StrokeContent#draw');
@@ -172,20 +172,19 @@ abstract class BaseStrokeContent
       _blurMaskFilterRadius = blurRadius;
     }
 
+    // Concat the parent matrix instead of scaling the stroke width, so skew affects the stroke.
+    canvas.save();
+    canvas.transform(parentMatrix.storage);
     for (var i = 0; i < _pathGroups.length; i++) {
       var pathGroup = _pathGroups[i];
 
       if (pathGroup.trimPath != null) {
-        _applyTrimPath(canvas, pathGroup, parentMatrix);
+        _applyTrimPath(canvas, pathGroup);
       } else {
         L.beginSection('StrokeContent#buildPath');
         _path.reset();
         for (var j = pathGroup.paths.length - 1; j >= 0; j--) {
-          _path.addPath(
-            pathGroup.paths[j].getPath(),
-            Offset.zero,
-            matrix4: parentMatrix.storage,
-          );
+          _path.addPath(pathGroup.paths[j].getPath(), Offset.zero);
         }
         L.endSection('StrokeContent#buildPath');
         L.beginSection('StrokeContent#drawPath');
@@ -193,18 +192,15 @@ abstract class BaseStrokeContent
         if (dropShadow != null) {
           dropShadow.draw(canvas, _path);
         }
-        canvas.drawPath(_withDashPattern(_path, parentMatrix), paint);
+        canvas.drawPath(_withDashPattern(_path), paint);
         L.endSection('StrokeContent#drawPath');
       }
     }
+    canvas.restore();
     L.endSection('StrokeContent#draw');
   }
 
-  void _applyTrimPath(
-    Canvas canvas,
-    _PathGroup pathGroup,
-    Matrix4 parentMatrix,
-  ) {
+  void _applyTrimPath(Canvas canvas, _PathGroup pathGroup) {
     L.beginSection('StrokeContent#applyTrimPath');
     var trimPath = pathGroup.trimPath;
     if (trimPath == null) {
@@ -213,11 +209,7 @@ abstract class BaseStrokeContent
     }
     _path.reset();
     for (var j = pathGroup.paths.length - 1; j >= 0; j--) {
-      _path.addPath(
-        pathGroup.paths[j].getPath(),
-        Offset.zero,
-        matrix4: parentMatrix.storage,
-      );
+      _path.addPath(pathGroup.paths[j].getPath(), Offset.zero);
     }
     var animStartValue = trimPath.start.value / 100;
     var animEndValue = trimPath.end.value / 100;
@@ -242,9 +234,7 @@ abstract class BaseStrokeContent
 
     var currentLength = 0.0;
     for (var j = pathGroup.paths.length - 1; j >= 0; j--) {
-      _trimPathPath.set(
-        pathGroup.paths[j].getPath().transform(parentMatrix.storage),
-      );
+      _trimPathPath.set(pathGroup.paths[j].getPath());
       var pathMetrics = _trimPathPath.computeMetrics().toList();
       var length = pathMetrics.isNotEmpty ? pathMetrics.first.length : 0;
       if (endLength > totalLength &&
@@ -260,13 +250,13 @@ abstract class BaseStrokeContent
         }
         var endValue = min((endLength - totalLength) / length, 1).toDouble();
         Utils.applyTrimPathIfNeeded(_trimPathPath, startValue, endValue, 0.0);
-        canvas.drawPath(_withDashPattern(_trimPathPath, parentMatrix), paint);
+        canvas.drawPath(_withDashPattern(_trimPathPath), paint);
       } else if (currentLength + length < startLength ||
           currentLength > endLength) {
         // Do nothing
       } else if (currentLength + length <= endLength &&
           startLength < currentLength) {
-        canvas.drawPath(_withDashPattern(_trimPathPath, parentMatrix), paint);
+        canvas.drawPath(_withDashPattern(_trimPathPath), paint);
       } else {
         double startValue;
         if (startLength < currentLength) {
@@ -281,7 +271,7 @@ abstract class BaseStrokeContent
           endValue = (endLength - currentLength) / length;
         }
         Utils.applyTrimPathIfNeeded(_trimPathPath, startValue, endValue, 0);
-        canvas.drawPath(_withDashPattern(_trimPathPath, parentMatrix), paint);
+        canvas.drawPath(_withDashPattern(_trimPathPath), paint);
       }
       currentLength += length;
     }
@@ -312,14 +302,13 @@ abstract class BaseStrokeContent
     return bounds;
   }
 
-  Path _withDashPattern(Path path, Matrix4 parentMatrix) {
+  Path _withDashPattern(Path path) {
     L.beginSection('StrokeContent#applyDashPattern');
     if (_dashPatternAnimations.isEmpty) {
       L.endSection('StrokeContent#applyDashPattern');
       return path;
     }
 
-    var scale = parentMatrix.getScale();
     for (var i = 0; i < _dashPatternAnimations.length; i++) {
       _dashPatternValues[i] = _dashPatternAnimations[i].value;
       // If the value of the dash pattern or gap is too small, the number of individual sections
@@ -335,12 +324,11 @@ abstract class BaseStrokeContent
           _dashPatternValues[i] = 0.1;
         }
       }
-      _dashPatternValues[i] *= scale;
     }
 
     var offset = _dashPatternOffsetAnimation == null
         ? 0.0
-        : _dashPatternOffsetAnimation.value * scale;
+        : _dashPatternOffsetAnimation.value;
     var newPath = dashPath(path, intervals: _dashPatternValues, phase: offset);
     L.endSection('StrokeContent#applyDashPattern');
 
diff --git a/lottie/lib/src/animation/content/content_group.dart b/lottie/lib/src/animation/content/content_group.dart
index 53cd36a..33e5dde 100644
--- a/lottie/lib/src/animation/content/content_group.dart
+++ b/lottie/lib/src/animation/content/content_group.dart
@@ -73,8 +73,8 @@ class ContentGroup implements DrawingContent, PathContent, KeyPathElement {
     this.name,
     this._contents,
     AnimatableTransform? transform, {
-    required bool hidden,
-  }) : _hidden = hidden {
+    required this._hidden,
+  }) {
     if (transform != null) {
       _transformAnimation = transform.createAnimation()
         ..addAnimationsToLayer(layer)
diff --git a/lottie/lib/src/animation/content/fill_content.dart b/lottie/lib/src/animation/content/fill_content.dart
index 27bd9c0..aee49b9 100644
--- a/lottie/lib/src/animation/content/fill_content.dart
+++ b/lottie/lib/src/animation/content/fill_content.dart
@@ -22,9 +22,7 @@ import 'path_content.dart';
 class FillContent implements DrawingContent, KeyPathElementContent {
   final Path _path = Path();
   final BaseLayer layer;
-  @override
-  final String? name;
-  final bool _hidden;
+  final ShapeFill _fill;
   final List<PathContent> _paths = <PathContent>[];
   late final BaseKeyframeAnimation<Color, Color> _colorAnimation;
   late final BaseKeyframeAnimation<int, int> _opacityAnimation;
@@ -34,9 +32,10 @@ class FillContent implements DrawingContent, KeyPathElementContent {
   double _blurMaskFilterRadius = 0;
   DropShadowKeyframeAnimation? dropShadowAnimation;
 
-  FillContent(this.lottieDrawable, this.layer, ShapeFill fill)
-    : name = fill.name,
-      _hidden = fill.hidden {
+  @override
+  String? get name => _fill.name;
+
+  FillContent(this.lottieDrawable, this.layer, this._fill) {
     var blurEffect = layer.blurEffect;
     if (blurEffect != null) {
       _blurAnimation = blurEffect.blurriness.createAnimation()
@@ -52,16 +51,14 @@ class FillContent implements DrawingContent, KeyPathElementContent {
       );
     }
 
-    if (fill.color == null || fill.opacity == null) {
+    if (_fill.color == null || _fill.opacity == null) {
       return;
     }
 
-    _path.fillType = fill.fillType;
-
-    _colorAnimation = fill.color!.createAnimation();
+    _colorAnimation = _fill.color!.createAnimation();
     _colorAnimation.addUpdateListener(onValueChanged);
     layer.addAnimation(_colorAnimation);
-    _opacityAnimation = fill.opacity!.createAnimation();
+    _opacityAnimation = _fill.opacity!.createAnimation();
     _opacityAnimation.addUpdateListener(onValueChanged);
     layer.addAnimation(_opacityAnimation);
   }
@@ -82,7 +79,7 @@ class FillContent implements DrawingContent, KeyPathElementContent {
 
   @override
   void draw(Canvas canvas, Matrix4 parentMatrix, {required int parentAlpha}) {
-    if (_hidden) {
+    if (_fill.hidden) {
       return;
     }
     L.beginSection('FillContent#draw');
@@ -112,6 +109,7 @@ class FillContent implements DrawingContent, KeyPathElementContent {
     }
 
     _path.reset();
+    _path.fillType = _fill.fillType;
     for (var i = 0; i < _paths.length; i++) {
       _path.addPath(_paths[i].getPath(), Offset.zero);
     }
@@ -131,6 +129,7 @@ class FillContent implements DrawingContent, KeyPathElementContent {
   @override
   Rect getBounds(Matrix4 parentMatrix, {required bool applyParents}) {
     _path.reset();
+    _path.fillType = _fill.fillType;
     for (var i = 0; i < _paths.length; i++) {
       _path.addPath(
         _paths[i].getPath(),
diff --git a/lottie/lib/src/animation/content/gradient_fill_content.dart b/lottie/lib/src/animation/content/gradient_fill_content.dart
index 3d591ff..195638f 100644
--- a/lottie/lib/src/animation/content/gradient_fill_content.dart
+++ b/lottie/lib/src/animation/content/gradient_fill_content.dart
@@ -52,7 +52,6 @@ class GradientFillContent implements DrawingContent, KeyPathElementContent {
       _opacityAnimation = _fill.opacity.createAnimation(),
       _startPointAnimation = _fill.startPoint.createAnimation(),
       _endPointAnimation = _fill.endPoint.createAnimation() {
-    _path.fillType = _fill.fillType;
     _colorAnimation.addUpdateListener(invalidate);
     layer.addAnimation(_colorAnimation);
 
@@ -105,6 +104,7 @@ class GradientFillContent implements DrawingContent, KeyPathElementContent {
     }
     L.beginSection('GradientFillContent#draw');
     _path.reset();
+    _path.fillType = _fill.fillType;
     for (var i = 0; i < _paths.length; i++) {
       _path.addPath(_paths[i].getPath(), Offset.zero);
     }
@@ -155,6 +155,7 @@ class GradientFillContent implements DrawingContent, KeyPathElementContent {
   @override
   Rect getBounds(Matrix4 parentMatrix, {required bool applyParents}) {
     _path.reset();
+    _path.fillType = _fill.fillType;
     for (var i = 0; i < _paths.length; i++) {
       _path.addPath(
         _paths[i].getPath(),
diff --git a/lottie/lib/src/animation/content/gradient_stroke_content.dart b/lottie/lib/src/animation/content/gradient_stroke_content.dart
index 3549421..8942d43 100644
--- a/lottie/lib/src/animation/content/gradient_stroke_content.dart
+++ b/lottie/lib/src/animation/content/gradient_stroke_content.dart
@@ -73,9 +73,9 @@ class GradientStrokeContent extends BaseStrokeContent {
 
     Gradient gradient;
     if (_type == GradientType.linear) {
-      gradient = _getLinearGradient(parentMatrix);
+      gradient = _getLinearGradient();
     } else {
-      gradient = _getRadialGradient(parentMatrix);
+      gradient = _getRadialGradient();
     }
 
     paint.shader = gradient;
@@ -83,8 +83,9 @@ class GradientStrokeContent extends BaseStrokeContent {
     super.draw(canvas, parentMatrix, parentAlpha: parentAlpha);
   }
 
-  Gradient _getLinearGradient(Matrix4 parentMatrix) {
-    var gradientHash = _getGradientHash(parentMatrix);
+  // Built in local space; BaseStrokeContent.draw concats the parent matrix, so don't reapply it.
+  Gradient _getLinearGradient() {
+    var gradientHash = _getGradientHash();
     var gradient = _linearGradientCache[gradientHash];
     if (gradient != null) {
       return gradient;
@@ -95,22 +96,15 @@ class GradientStrokeContent extends BaseStrokeContent {
     var colors = _applyDynamicColorsIfNeeded(gradientColor.colors);
     var positions = gradientColor.positions;
 
-    gradient = Gradient.linear(
-      startPoint,
-      endPoint,
-      colors,
-      positions,
-      TileMode.clamp,
-      parentMatrix.storage,
-    );
+    gradient = Gradient.linear(startPoint, endPoint, colors, positions);
     if (gradientHash != null) {
       _linearGradientCache[gradientHash] = gradient;
     }
     return gradient;
   }
 
-  Gradient _getRadialGradient(Matrix4 parentMatrix) {
-    var gradientHash = _getGradientHash(parentMatrix);
+  Gradient _getRadialGradient() {
+    var gradientHash = _getGradientHash();
     var gradient = _radialGradientCache[gradientHash];
     if (gradient != null) {
       return gradient;
@@ -125,14 +119,7 @@ class GradientStrokeContent extends BaseStrokeContent {
     var x1 = endPoint.dx;
     var y1 = endPoint.dy;
     var radius = hypot(x1 - x0, y1 - y0).toDouble();
-    gradient = Gradient.radial(
-      startPoint,
-      radius,
-      colors,
-      positions,
-      TileMode.clamp,
-      parentMatrix.storage,
-    );
+    gradient = Gradient.radial(startPoint, radius, colors, positions);
     if (gradientHash != null) {
       _radialGradientCache[gradientHash] = gradient;
     }
@@ -142,7 +129,7 @@ class GradientStrokeContent extends BaseStrokeContent {
   //TODO(xha): cache the shader based on the input parameters and not the animation
   // progress.
   // At first, log when there is too many cache miss.
-  int? _getGradientHash(Matrix4 parentMatrix) {
+  int? _getGradientHash() {
     // Don't cache gradient if ValueDelegate.gradient is used
     if (_colorCallbackAnimation != null) return null;
 
@@ -160,7 +147,6 @@ class GradientStrokeContent extends BaseStrokeContent {
     if (colorProgress != 0) {
       hash = hash * 31 * colorProgress;
     }
-    hash *= 31 * parentMatrix.hashCode;
     return hash;
   }
 
diff --git a/lottie/lib/src/animation/content/polystar_content.dart b/lottie/lib/src/animation/content/polystar_content.dart
index 00338fa..e4e00b2 100644
--- a/lottie/lib/src/animation/content/polystar_content.dart
+++ b/lottie/lib/src/animation/content/polystar_content.dart
@@ -24,6 +24,7 @@ class PolystarContent implements PathContent, KeyPathElementContent {
   static const _polystarMagicNumber = .47829;
   static const _polygonMagicNumber = .25;
   final _path = Path();
+  final _lastSegmentPath = Path();
 
   final LottieDrawable lottieDrawable;
   final PolystarShape _polystarShape;
@@ -275,15 +276,50 @@ class PolystarContent implements PathContent, KeyPathElementContent {
         var cp1y = radius * roundedness * _polygonMagicNumber * cp1Dy;
         var cp2x = radius * roundedness * _polygonMagicNumber * cp2Dx;
         var cp2y = radius * roundedness * _polygonMagicNumber * cp2Dy;
-        _path.cubicTo(
-          previousX - cp1x,
-          previousY - cp1y,
-          x + cp2x,
-          y + cp2y,
-          x,
-          y,
-        );
+        if (i == numPoints - 1) {
+          // When there is a huge stroke, it will flash if the path ends where it starts.
+          // We want the final bezier curve to end *slightly* before the start.
+          // The close() call at the end will complete the polystar.
+          // https://github.com/airbnb/lottie-android/issues/2329
+          _lastSegmentPath.reset();
+          _lastSegmentPath.moveTo(previousX, previousY);
+          _lastSegmentPath.cubicTo(
+            previousX - cp1x,
+            previousY - cp1y,
+            x + cp2x,
+            y + cp2y,
+            x,
+            y,
+          );
+          var metric = _lastSegmentPath.computeMetrics().first;
+          var position = metric
+              .getTangentForOffset(metric.length * 0.9999)!
+              .position;
+          _path.cubicTo(
+            previousX - cp1x,
+            previousY - cp1y,
+            x + cp2x,
+            y + cp2y,
+            position.dx,
+            position.dy,
+          );
+        } else {
+          _path.cubicTo(
+            previousX - cp1x,
+            previousY - cp1y,
+            x + cp2x,
+            y + cp2y,
+            x,
+            y,
+          );
+        }
       } else {
+        if (i == numPoints - 1) {
+          // When there is a huge stroke, it will flash if the path ends where it starts.
+          // The close() call should make the path effectively equivalent.
+          // https://github.com/airbnb/lottie-android/issues/2329
+          continue;
+        }
         _path.lineTo(x, y);
       }
 
diff --git a/lottie/lib/src/animation/content/rounded_corners_content.dart b/lottie/lib/src/animation/content/rounded_corners_content.dart
index 4a3c167..945a4de 100644
--- a/lottie/lib/src/animation/content/rounded_corners_content.dart
+++ b/lottie/lib/src/animation/content/rounded_corners_content.dart
@@ -42,6 +42,11 @@ class RoundedCornersContent implements ShapeModifierContent {
     // Do nothing.
   }
 
+  @override
+  void addUpdateListener(void Function() listener) {
+    roundedCorners.addUpdateListener(listener);
+  }
+
   /// Rounded corner algorithm:
   /// Iterate through each vertex.
   /// If a vertex is a sharp corner, it rounds it.
diff --git a/lottie/lib/src/animation/content/shape_content.dart b/lottie/lib/src/animation/content/shape_content.dart
index c7dc24b..5fc3f1b 100644
--- a/lottie/lib/src/animation/content/shape_content.dart
+++ b/lottie/lib/src/animation/content/shape_content.dart
@@ -1,17 +1,22 @@
 import 'dart:ui';
 import '../../lottie_drawable.dart';
+import '../../lottie_property.dart';
 import '../../model/content/shape_path.dart';
 import '../../model/content/shape_trim_path.dart';
+import '../../model/key_path.dart';
 import '../../model/layer/base_layer.dart';
 import '../../utils.dart';
+import '../../utils/misc.dart';
+import '../../value/lottie_value_callback.dart';
 import '../keyframe/shape_keyframe_animation.dart';
 import 'compound_trim_path_content.dart';
 import 'content.dart';
+import 'key_path_element_content.dart';
 import 'path_content.dart';
 import 'shape_modifier_content.dart';
 import 'trim_path_content.dart';
 
-class ShapeContent implements PathContent {
+class ShapeContent implements PathContent, KeyPathElementContent {
   final _path = Path();
 
   final ShapePath _shape;
@@ -46,6 +51,7 @@ class ShapeContent implements PathContent {
         trimPath.addListener(_invalidate);
       } else if (content is ShapeModifierContent) {
         shapeModifierContents ??= [];
+        content.addUpdateListener(_invalidate);
         shapeModifierContents.add(content);
       }
     }
@@ -57,7 +63,7 @@ class ShapeContent implements PathContent {
 
   @override
   Path getPath() {
-    if (_isPathValid) {
+    if (_isPathValid && !_shapeAnimation.hasValueCallback) {
       return _path;
     }
 
@@ -76,4 +82,27 @@ class ShapeContent implements PathContent {
     _isPathValid = true;
     return _path;
   }
+
+  @override
+  void resolveKeyPath(
+    KeyPath keyPath,
+    int depth,
+    List<KeyPath> accumulator,
+    KeyPath currentPartialKeyPath,
+  ) {
+    MiscUtils.resolveKeyPath(
+      keyPath,
+      depth,
+      accumulator,
+      currentPartialKeyPath,
+      this,
+    );
+  }
+
+  @override
+  void addValueCallback<T>(T property, LottieValueCallback<T>? callback) {
+    if (property == LottieProperty.path) {
+      _shapeAnimation.setValueCallback(callback as LottieValueCallback<Path>?);
+    }
+  }
 }
diff --git a/lottie/lib/src/animation/content/shape_modifier_content.dart b/lottie/lib/src/animation/content/shape_modifier_content.dart
index 12daabe..e6a8676 100644
--- a/lottie/lib/src/animation/content/shape_modifier_content.dart
+++ b/lottie/lib/src/animation/content/shape_modifier_content.dart
@@ -3,4 +3,6 @@ import 'content.dart';
 
 abstract class ShapeModifierContent extends Content {
   ShapeData modifyShape(ShapeData shapeData);
+
+  void addUpdateListener(void Function() listener);
 }
diff --git a/lottie/lib/src/animation/keyframe/base_keyframe_animation.dart b/lottie/lib/src/animation/keyframe/base_keyframe_animation.dart
index c4defc1..62b2c33 100644
--- a/lottie/lib/src/animation/keyframe/base_keyframe_animation.dart
+++ b/lottie/lib/src/animation/keyframe/base_keyframe_animation.dart
@@ -107,7 +107,8 @@ abstract class BaseKeyframeAnimation<K extends Object, A extends Object?> {
 
     var linearProgress = getLinearCurrentKeyframeProgress();
     if (valueCallback == null &&
-        _keyframesWrapper.isCachedValueEnabled(linearProgress)) {
+        _keyframesWrapper.isCachedValueEnabled(linearProgress) &&
+        !skipCache) {
       return _cachedGetValue!;
     }
 
@@ -150,6 +151,11 @@ abstract class BaseKeyframeAnimation<K extends Object, A extends Object?> {
     }
   }
 
+  bool get hasValueCallback => valueCallback != null;
+
+  @protected
+  bool get skipCache => false;
+
   /// keyframeProgress will be [0, 1] unless the interpolator has overshoot in which case, this
   /// should be able to handle values outside of that range.
   A getValue(Keyframe<K> keyframe, double keyframeProgress);
diff --git a/lottie/lib/src/animation/keyframe/shape_keyframe_animation.dart b/lottie/lib/src/animation/keyframe/shape_keyframe_animation.dart
index 5ee13d6..4d089d5 100644
--- a/lottie/lib/src/animation/keyframe/shape_keyframe_animation.dart
+++ b/lottie/lib/src/animation/keyframe/shape_keyframe_animation.dart
@@ -9,17 +9,19 @@ class ShapeKeyframeAnimation extends BaseKeyframeAnimation<ShapeData, Path> {
   final ShapeData _tempShapeData = ShapeData.empty();
   final Path _tempPath = Path();
   List<ShapeModifierContent>? _shapeModifiers;
+  Path? _valueCallbackStartPath;
+  Path? _valueCallbackEndPath;
 
   ShapeKeyframeAnimation(super.keyframes);
 
   @override
   Path getValue(Keyframe<ShapeData> keyframe, double keyframeProgress) {
     var startShapeData = keyframe.startValue!;
-    var endShapeData = keyframe.endValue ?? startShapeData;
+    var endShapeData = keyframe.endValue;
 
     _tempShapeData.interpolateBetween(
       startShapeData,
-      endShapeData,
+      endShapeData ?? startShapeData,
       keyframeProgress,
     );
     var modifiedShapeData = _tempShapeData;
@@ -30,10 +32,39 @@ class ShapeKeyframeAnimation extends BaseKeyframeAnimation<ShapeData, Path> {
       }
     }
     MiscUtils.getPathFromData(modifiedShapeData, _tempPath);
+
+    var valueCallback = this.valueCallback;
+    if (valueCallback != null) {
+      var startPath = _valueCallbackStartPath ??= Path();
+      var endPath = _valueCallbackEndPath ??= Path();
+      MiscUtils.getPathFromData(startShapeData, startPath);
+      if (endShapeData != null) {
+        MiscUtils.getPathFromData(endShapeData, endPath);
+      }
+      return valueCallback.getValueInternal(
+            keyframe.startFrame,
+            keyframe.endFrame,
+            startPath,
+            endShapeData == null ? startPath : endPath,
+            keyframeProgress,
+            getLinearCurrentKeyframeProgress(),
+            progress,
+          ) ??
+          _tempPath;
+    }
+
     return _tempPath;
   }
 
   void setShapeModifiers(List<ShapeModifierContent>? shapeModifiers) {
     _shapeModifiers = shapeModifiers;
   }
+
+  @override
+  bool get skipCache {
+    // If there are shape modifiers but no animation on the shape itself, the shape animation
+    // will think nothing changed and will keep returning its cached value.
+    var shapeModifiers = _shapeModifiers;
+    return shapeModifiers != null && shapeModifiers.isNotEmpty;
+  }
 }
diff --git a/lottie/lib/src/animation/keyframe/transform_keyframe_animation.dart b/lottie/lib/src/animation/keyframe/transform_keyframe_animation.dart
index 8b4baac..c7d8cb9 100644
--- a/lottie/lib/src/animation/keyframe/transform_keyframe_animation.dart
+++ b/lottie/lib/src/animation/keyframe/transform_keyframe_animation.dart
@@ -26,6 +26,8 @@ class TransformKeyframeAnimation {
       _position = animatableTransform.position?.createAnimation(),
       _scale = animatableTransform.scale?.createAnimation(),
       _rotation = animatableTransform.rotation?.createAnimation(),
+      _rotationX = animatableTransform.rotationX?.createAnimation(),
+      _rotationY = animatableTransform.rotationY?.createAnimation(),
       _autoOrient = animatableTransform.isAutoOrient,
       _skew = animatableTransform.skew?.createAnimation(),
       _skewAngle = animatableTransform.skewAngle?.createAnimation(),
@@ -42,6 +44,8 @@ class TransformKeyframeAnimation {
   BaseKeyframeAnimation<Offset, Offset>? _position;
   BaseKeyframeAnimation<Offset, Offset>? _scale;
   BaseKeyframeAnimation<double, double>? _rotation;
+  BaseKeyframeAnimation<double, double>? _rotationX;
+  BaseKeyframeAnimation<double, double>? _rotationY;
   DoubleKeyframeAnimation? _skew;
   DoubleKeyframeAnimation? _skewAngle;
 
@@ -65,6 +69,8 @@ class TransformKeyframeAnimation {
     layer.addAnimation(_position);
     layer.addAnimation(_scale);
     layer.addAnimation(_rotation);
+    layer.addAnimation(_rotationX);
+    layer.addAnimation(_rotationY);
     layer.addAnimation(_skew);
     layer.addAnimation(_skewAngle);
   }
@@ -77,6 +83,8 @@ class TransformKeyframeAnimation {
     _position?.addUpdateListener(listener);
     _scale?.addUpdateListener(listener);
     _rotation?.addUpdateListener(listener);
+    _rotationX?.addUpdateListener(listener);
+    _rotationY?.addUpdateListener(listener);
     _skew?.addUpdateListener(listener);
     _skewAngle?.addUpdateListener(listener);
   }
@@ -89,6 +97,8 @@ class TransformKeyframeAnimation {
     _position?.setProgress(progress);
     _scale?.setProgress(progress);
     _rotation?.setProgress(progress);
+    _rotationX?.setProgress(progress);
+    _rotationY?.setProgress(progress);
     _skew?.setProgress(progress);
     _skewAngle?.setProgress(progress);
   }
@@ -132,6 +142,20 @@ class TransformKeyframeAnimation {
       }
     }
 
+    // Approximate X/Y rotation as a 2D foreshortening: scale the perpendicular axis by cos(angle).
+    if (_rotationY != null) {
+      final rotationY = _rotationY!.value;
+      if (rotationY != 0) {
+        _matrix.scaleByDouble(cos(radians(rotationY)), 1, 1, 1);
+      }
+    }
+    if (_rotationX != null) {
+      final rotationX = _rotationX!.value;
+      if (rotationX != 0) {
+        _matrix.scaleByDouble(1, cos(radians(rotationX)), 1, 1);
+      }
+    }
+
     if (_skew != null) {
       final mCos = _skewAngle == null
           ? 0.0
@@ -258,6 +282,19 @@ class TransformKeyframeAnimation {
       );
     }
 
+    if (_rotationY != null) {
+      final rotationY = _rotationY!.value * amount;
+      if (rotationY != 0) {
+        _matrix.scaleByDouble(cos(radians(rotationY)), 1, 1, 1);
+      }
+    }
+    if (_rotationX != null) {
+      final rotationX = _rotationX!.value * amount;
+      if (rotationX != 0) {
+        _matrix.scaleByDouble(1, cos(radians(rotationX)), 1, 1);
+      }
+    }
+
     return _matrix;
   }
 
@@ -329,6 +366,24 @@ class TransformKeyframeAnimation {
       } else {
         _endOpacity!.setValueCallback(callback as LottieValueCallback<double>?);
       }
+    } else if (property == LottieProperty.transformRotationX) {
+      if (_rotationX == null) {
+        _rotationX = ValueCallbackKeyframeAnimation(
+          callback as LottieValueCallback<double>?,
+          0.0,
+        );
+      } else {
+        _rotationX!.setValueCallback(callback as LottieValueCallback<double>?);
+      }
+    } else if (property == LottieProperty.transformRotationY) {
+      if (_rotationY == null) {
+        _rotationY = ValueCallbackKeyframeAnimation(
+          callback as LottieValueCallback<double>?,
+          0.0,
+        );
+      } else {
+        _rotationY!.setValueCallback(callback as LottieValueCallback<double>?);
+      }
     } else if (property == LottieProperty.transformSkew) {
       _skew ??= DoubleKeyframeAnimation([Keyframe.nonAnimated(0.0)]);
       _skew!.setValueCallback(callback as LottieValueCallback<double>?);
diff --git a/lottie/lib/src/composition.dart b/lottie/lib/src/composition.dart
index b5a2b7a..28dcd0c 100644
--- a/lottie/lib/src/composition.dart
+++ b/lottie/lib/src/composition.dart
@@ -77,14 +77,21 @@ class LottieComposition {
       if (filePicker != null) {
         jsonFile = filePicker(archive.files);
       }
-      jsonFile ??= archive.files.firstWhere((e) => e.name.endsWith('.json'));
+      jsonFile ??= archive.files.firstWhereOrNull(
+        (e) => e.name.startsWith('animations/') && e.name.endsWith('.json'),
+      );
+      jsonFile ??= archive.files.firstWhere(
+        (e) =>
+            e.name.endsWith('.json') && p.basename(e.name) != 'manifest.json',
+      );
 
       var composition = parseJsonBytes(jsonFile.content);
 
       for (var image in composition.images.values) {
         var imagePath = p.posix.join(image.dirName, image.fileName);
         var found = archive.files.firstWhereOrNull(
-          (f) => f.name.toLowerCase() == imagePath.toLowerCase(),
+          (f) =>
+              _normalizeArchivePath(f.name) == _normalizeArchivePath(imagePath),
         );
 
         ImageProvider? provider;
@@ -119,6 +126,14 @@ class LottieComposition {
     return null;
   }
 
+  static String _normalizeArchivePath(String path) {
+    var normalized = p.posix.normalize(path).toLowerCase();
+    if (normalized.startsWith('/')) {
+      normalized = normalized.substring(1);
+    }
+    return normalized;
+  }
+
   static Future<LottieComposition?> decodeGZip(List<int> bytes) async {
     if (bytes[0] == 31 && bytes[1] == 139) {
       var decodedBytes = GZipDecoder().decodeBytes(bytes);
diff --git a/lottie/lib/src/lottie.dart b/lottie/lib/src/lottie.dart
index 4c8ed6d..880d9e7 100644
--- a/lottie/lib/src/lottie.dart
+++ b/lottie/lib/src/lottie.dart
@@ -389,6 +389,12 @@ class Lottie extends StatefulWidget {
 class _LottieState extends State<Lottie> with TickerProviderStateMixin {
   late AnimationController _autoAnimation;
 
+  /// The last frame we rebuilt for, expressed as the frame-rate-rounded
+  /// progress. The vsync ticker notifies us every frame, but we only rebuild
+  /// when this value actually changes, so build/paint run at the composition's
+  /// frame rate instead of the display refresh rate.
+  double? _renderedProgress;
+
   @override
   void initState() {
     super.initState();
@@ -397,6 +403,7 @@ class _LottieState extends State<Lottie> with TickerProviderStateMixin {
       vsync: this,
       duration: widget.composition?.duration ?? const Duration(seconds: 1),
     );
+    _progressAnimation.addListener(_onProgressChanged);
     _updateAutoAnimation();
   }
 
@@ -404,6 +411,13 @@ class _LottieState extends State<Lottie> with TickerProviderStateMixin {
   void didUpdateWidget(Lottie oldWidget) {
     super.didUpdateWidget(oldWidget);
 
+    if (oldWidget.controller != widget.controller) {
+      (oldWidget.controller ?? _autoAnimation).removeListener(
+        _onProgressChanged,
+      );
+      _progressAnimation.addListener(_onProgressChanged);
+    }
+
     _autoAnimation.duration =
         widget.composition?.duration ?? const Duration(seconds: 1);
     _updateAutoAnimation();
@@ -421,8 +435,25 @@ class _LottieState extends State<Lottie> with TickerProviderStateMixin {
     }
   }
 
+  /// Called on every vsync tick. Quantizes the raw progress to the target frame
+  /// rate and only triggers a rebuild when the resulting frame changes.
+  void _onProgressChanged() {
+    var rounded =
+        widget.composition?.roundProgress(
+          _progressAnimation.value,
+          frameRate: _frameRate,
+        ) ??
+        _progressAnimation.value;
+    if (rounded != _renderedProgress) {
+      setState(() => _renderedProgress = rounded);
+    }
+  }
+
+  FrameRate get _frameRate => widget.frameRate ?? FrameRate.composition;
+
   @override
   void dispose() {
+    _progressAnimation.removeListener(_onProgressChanged);
     _autoAnimation.dispose();
     super.dispose();
   }
@@ -432,23 +463,18 @@ class _LottieState extends State<Lottie> with TickerProviderStateMixin {
 
   @override
   Widget build(BuildContext context) {
-    Widget child = AnimatedBuilder(
-      animation: _progressAnimation,
-      builder: (context, _) {
-        return RawLottie(
-          composition: widget.composition,
-          delegates: widget.delegates,
-          options: widget.options,
-          progress: _progressAnimation.value,
-          frameRate: widget.frameRate,
-          width: widget.width,
-          height: widget.height,
-          fit: widget.fit,
-          alignment: widget.alignment,
-          filterQuality: widget.filterQuality,
-          renderCache: widget.renderCache,
-        );
-      },
+    Widget child = RawLottie(
+      composition: widget.composition,
+      delegates: widget.delegates,
+      options: widget.options,
+      progress: _progressAnimation.value,
+      frameRate: widget.frameRate,
+      width: widget.width,
+      height: widget.height,
+      fit: widget.fit,
+      alignment: widget.alignment,
+      filterQuality: widget.filterQuality,
+      renderCache: widget.renderCache,
     );
 
     if (widget.addRepaintBoundary) {
diff --git a/lottie/lib/src/lottie_drawable.dart b/lottie/lib/src/lottie_drawable.dart
index 22150d3..a792a72 100644
--- a/lottie/lib/src/lottie_drawable.dart
+++ b/lottie/lib/src/lottie_drawable.dart
@@ -222,8 +222,6 @@ class LottieDrawable {
     var destinationRect = destinationPosition & destinationSize;
     var sourceRect = alignment.inscribe(sourceSize, Offset.zero & inputSize);
 
-    _matrix.setIdentity();
-
     var cacheUsed = false;
     if (renderCache != null) {
       var progressForCache = _progressAliases[progress] ?? progress;
@@ -243,12 +241,7 @@ class LottieDrawable {
     if (!cacheUsed) {
       canvas.save();
       canvas.translate(destinationRect.left, destinationRect.top);
-      _matrix.scaleByDouble(
-        destinationSize.width / sourceRect.width,
-        destinationSize.height / sourceRect.height,
-        destinationSize.width / sourceRect.width,
-        1,
-      );
+      _matrix.setSourceToDestinationScale(sourceRect, destinationSize);
       _compositionLayer.draw(canvas, _matrix, parentAlpha: 255);
       canvas.restore();
     }
diff --git a/lottie/lib/src/lottie_property.dart b/lottie/lib/src/lottie_property.dart
index a229b81..2b2264b 100644
--- a/lottie/lib/src/lottie_property.dart
+++ b/lottie/lib/src/lottie_property.dart
@@ -83,6 +83,12 @@ abstract class LottieProperty {
   /// In degrees */
   static const double transformRotation = 12.0;
 
+  /// In degrees (3D X-axis rotation) */
+  static const double transformRotationX = 30.0;
+
+  /// In degrees (3D Y-axis rotation) */
+  static const double transformRotationY = 31.0;
+
   /// 0-85 */
   static const double transformSkew = 13.0;
 
@@ -141,6 +147,9 @@ abstract class LottieProperty {
 
   static final List<Color> gradientColor = [];
 
+  /// Replace the outline of a shape (`ShapeContent`) at runtime.
+  static final Path path = Path();
+
   /// Replace the text for a text layer.
   static const text = 'dynamic_text';
 }
diff --git a/lottie/lib/src/model/animatable/animatable_text_properties.dart b/lottie/lib/src/model/animatable/animatable_text_properties.dart
index 7357241..5ce0cc3 100644
--- a/lottie/lib/src/model/animatable/animatable_text_properties.dart
+++ b/lottie/lib/src/model/animatable/animatable_text_properties.dart
@@ -1,16 +1,9 @@
-import 'animatable_color_value.dart';
-import 'animatable_double_value.dart';
+import 'animatable_text_range_selector.dart';
+import 'animatable_text_style.dart';
 
 class AnimatableTextProperties {
-  final AnimatableColorValue? color;
-  final AnimatableColorValue? stroke;
-  final AnimatableDoubleValue? strokeWidth;
-  final AnimatableDoubleValue? tracking;
+  final AnimatableTextStyle? textStyle;
+  final AnimatableTextRangeSelector? rangeSelector;
 
-  AnimatableTextProperties({
-    this.color,
-    this.stroke,
-    this.strokeWidth,
-    this.tracking,
-  });
+  AnimatableTextProperties({this.textStyle, this.rangeSelector});
 }
diff --git a/lottie/lib/src/model/animatable/animatable_text_range_selector.dart b/lottie/lib/src/model/animatable/animatable_text_range_selector.dart
new file mode 100644
index 0000000..4e1bb07
--- /dev/null
+++ b/lottie/lib/src/model/animatable/animatable_text_range_selector.dart
@@ -0,0 +1,17 @@
+import '../content/text_range_units.dart';
+import 'animatable_integer_value.dart';
+
+/// Defines an animated range of text that should have an [AnimatableTextStyle] applied to it.
+class AnimatableTextRangeSelector {
+  final AnimatableIntegerValue? start;
+  final AnimatableIntegerValue? end;
+  final AnimatableIntegerValue? offset;
+  final TextRangeUnits units;
+
+  AnimatableTextRangeSelector({
+    this.start,
+    this.end,
+    this.offset,
+    required this.units,
+  });
+}
diff --git a/lottie/lib/src/model/animatable/animatable_text_style.dart b/lottie/lib/src/model/animatable/animatable_text_style.dart
new file mode 100644
index 0000000..1637039
--- /dev/null
+++ b/lottie/lib/src/model/animatable/animatable_text_style.dart
@@ -0,0 +1,19 @@
+import 'animatable_color_value.dart';
+import 'animatable_double_value.dart';
+import 'animatable_integer_value.dart';
+
+class AnimatableTextStyle {
+  final AnimatableColorValue? color;
+  final AnimatableColorValue? stroke;
+  final AnimatableDoubleValue? strokeWidth;
+  final AnimatableDoubleValue? tracking;
+  final AnimatableIntegerValue? opacity;
+
+  AnimatableTextStyle({
+    this.color,
+    this.stroke,
+    this.strokeWidth,
+    this.tracking,
+    this.opacity,
+  });
+}
diff --git a/lottie/lib/src/model/animatable/animatable_transform.dart b/lottie/lib/src/model/animatable/animatable_transform.dart
index 91d178b..dce9a17 100644
--- a/lottie/lib/src/model/animatable/animatable_transform.dart
+++ b/lottie/lib/src/model/animatable/animatable_transform.dart
@@ -20,6 +20,11 @@ class AnimatableTransform implements ModifierContent, ContentModel {
 
   final AnimatableDoubleValue? rotation;
 
+  // 3D rotation. [rotation] is the Z rotation.
+  final AnimatableDoubleValue? rotationX;
+
+  final AnimatableDoubleValue? rotationY;
+
   final AnimatableIntegerValue? opacity;
 
   final AnimatableDoubleValue? skew;
@@ -39,6 +44,8 @@ class AnimatableTransform implements ModifierContent, ContentModel {
     this.position,
     this.scale,
     this.rotation,
+    this.rotationX,
+    this.rotationY,
     this.opacity,
     this.skew,
     this.skewAngle,
diff --git a/lottie/lib/src/model/content/text_range_units.dart b/lottie/lib/src/model/content/text_range_units.dart
new file mode 100644
index 0000000..f2a1c7e
--- /dev/null
+++ b/lottie/lib/src/model/content/text_range_units.dart
@@ -0,0 +1,2 @@
+/// `index` is named [charIndex] because every Dart enum already defines an `index` getter.
+enum TextRangeUnits { percent, charIndex }
diff --git a/lottie/lib/src/model/layer/base_layer.dart b/lottie/lib/src/model/layer/base_layer.dart
index 4553543..17bf8b8 100644
--- a/lottie/lib/src/model/layer/base_layer.dart
+++ b/lottie/lib/src/model/layer/base_layer.dart
@@ -246,7 +246,7 @@ abstract class BaseLayer implements DrawingContent, KeyPathElement {
         canvas.saveLayer(bounds, _mattePaint);
         L.endSection('Layer#saveLayer');
         _clearCanvas(canvas, bounds);
-        _matteLayer!.draw(canvas, parentMatrix, parentAlpha: alpha);
+        _matteLayer!.draw(canvas, parentMatrix, parentAlpha: parentAlpha);
         L.beginSection('Layer#restoreLayer');
         canvas.restore();
         L.endSection('Layer#restoreLayer');
diff --git a/lottie/lib/src/model/layer/text_layer.dart b/lottie/lib/src/model/layer/text_layer.dart
index 87558d3..75ff270 100644
--- a/lottie/lib/src/model/layer/text_layer.dart
+++ b/lottie/lib/src/model/layer/text_layer.dart
@@ -1,3 +1,4 @@
+import 'dart:math' as math;
 import 'package:flutter/widgets.dart';
 import '../../animation/content/content_group.dart';
 import '../../animation/keyframe/base_keyframe_animation.dart';
@@ -9,6 +10,7 @@ import '../../lottie_property.dart';
 import '../../utils.dart';
 import '../../utils/characters.dart';
 import '../../value/lottie_value_callback.dart';
+import '../content/text_range_units.dart';
 import '../document_data.dart';
 import '../font.dart';
 import '../font_character.dart';
@@ -48,6 +50,16 @@ class TextLayer extends BaseLayer {
 
   BaseKeyframeAnimation<double, double>? _textSizeCallbackAnimation;
 
+  BaseKeyframeAnimation<int, int>? _opacityAnimation;
+
+  BaseKeyframeAnimation<int, int>? _textRangeStartAnimation;
+
+  BaseKeyframeAnimation<int, int>? _textRangeEndAnimation;
+
+  BaseKeyframeAnimation<int, int>? _textRangeOffsetAnimation;
+
+  TextRangeUnits _textRangeUnits = TextRangeUnits.charIndex;
+
   TextLayer(LottieDrawable lottieDrawable, Layer layerModel)
     : _composition = layerModel.composition,
       _textAnimation = layerModel.text!.createAnimation(),
@@ -56,29 +68,59 @@ class TextLayer extends BaseLayer {
     addAnimation(_textAnimation);
 
     var textProperties = layerModel.textProperties;
-    if (textProperties != null && textProperties.color != null) {
-      _colorAnimation = textProperties.color!.createAnimation()
+    var textStyle = textProperties?.textStyle;
+    if (textStyle != null && textStyle.color != null) {
+      _colorAnimation = textStyle.color!.createAnimation()
         ..addUpdateListener(invalidateSelf);
       addAnimation(_colorAnimation);
     }
 
-    if (textProperties != null && textProperties.stroke != null) {
-      _strokeColorAnimation = textProperties.stroke!.createAnimation()
+    if (textStyle != null && textStyle.stroke != null) {
+      _strokeColorAnimation = textStyle.stroke!.createAnimation()
         ..addUpdateListener(invalidateSelf);
       addAnimation(_strokeColorAnimation);
     }
 
-    if (textProperties != null && textProperties.strokeWidth != null) {
-      _strokeWidthAnimation = textProperties.strokeWidth!.createAnimation()
+    if (textStyle != null && textStyle.strokeWidth != null) {
+      _strokeWidthAnimation = textStyle.strokeWidth!.createAnimation()
         ..addUpdateListener(invalidateSelf);
       addAnimation(_strokeWidthAnimation);
     }
 
-    if (textProperties != null && textProperties.tracking != null) {
-      _trackingAnimation = textProperties.tracking!.createAnimation()
+    if (textStyle != null && textStyle.tracking != null) {
+      _trackingAnimation = textStyle.tracking!.createAnimation()
         ..addUpdateListener(invalidateSelf);
       addAnimation(_trackingAnimation);
     }
+
+    if (textStyle != null && textStyle.opacity != null) {
+      _opacityAnimation = textStyle.opacity!.createAnimation()
+        ..addUpdateListener(invalidateSelf);
+      addAnimation(_opacityAnimation);
+    }
+
+    var rangeSelector = textProperties?.rangeSelector;
+    if (rangeSelector != null && rangeSelector.start != null) {
+      _textRangeStartAnimation = rangeSelector.start!.createAnimation()
+        ..addUpdateListener(invalidateSelf);
+      addAnimation(_textRangeStartAnimation);
+    }
+
+    if (rangeSelector != null && rangeSelector.end != null) {
+      _textRangeEndAnimation = rangeSelector.end!.createAnimation()
+        ..addUpdateListener(invalidateSelf);
+      addAnimation(_textRangeEndAnimation);
+    }
+
+    if (rangeSelector != null && rangeSelector.offset != null) {
+      _textRangeOffsetAnimation = rangeSelector.offset!.createAnimation()
+        ..addUpdateListener(invalidateSelf);
+      addAnimation(_textRangeOffsetAnimation);
+    }
+
+    if (rangeSelector != null) {
+      _textRangeUnits = rangeSelector.units;
+    }
   }
 
   @override
@@ -107,24 +149,41 @@ class TextLayer extends BaseLayer {
     canvas.save();
     canvas.transform(parentMatrix.storage);
 
-    _configurePaint(documentData, parentAlpha);
+    _configurePaint(documentData, parentAlpha, 0);
 
     if (lottieDrawable.useTextGlyphs) {
-      _drawTextWithGlyphs(documentData, parentMatrix, font, canvas);
+      _drawTextWithGlyphs(
+        documentData,
+        parentMatrix,
+        font,
+        canvas,
+        parentAlpha,
+      );
     } else {
-      _drawTextWithFont(documentData, font, canvas);
+      _drawTextWithFont(documentData, font, canvas, parentAlpha);
     }
 
     canvas.restore();
   }
 
-  void _configurePaint(DocumentData documentData, int parentAlpha) {
+  /// Configures the [_fillPaint] and [_strokePaint] used for drawing based on the
+  /// currently active text ranges.
+  ///
+  /// [parentAlpha] is a value from 0 to 255 indicating the alpha of the parented layer.
+  void _configurePaint(
+    DocumentData documentData,
+    int parentAlpha,
+    int indexInDocument,
+  ) {
     Color fillPaintColor;
     if (_colorCallbackAnimation != null) {
+      // dynamic property takes priority
       fillPaintColor = _colorCallbackAnimation!.value;
-    } else if (_colorAnimation != null) {
+    } else if (_colorAnimation != null &&
+        _isIndexInRangeSelection(indexInDocument)) {
       fillPaintColor = _colorAnimation!.value;
     } else {
+      // fall back to the document color
       fillPaintColor = documentData.color;
     }
     _fillPaint.color = fillPaintColor.withValues(alpha: _fillPaint.color.a);
@@ -132,7 +191,8 @@ class TextLayer extends BaseLayer {
     Color strokePaintColor;
     if (_strokeColorCallbackAnimation != null) {
       strokePaintColor = _strokeColorCallbackAnimation!.value;
-    } else if (_strokeColorAnimation != null) {
+    } else if (_strokeColorAnimation != null &&
+        _isIndexInRangeSelection(indexInDocument)) {
       strokePaintColor = _strokeColorAnimation!.value;
     } else {
       strokePaintColor = documentData.strokeColor;
@@ -141,25 +201,78 @@ class TextLayer extends BaseLayer {
       alpha: _strokePaint.color.a,
     );
 
-    var opacity = transform.opacity?.value ?? 100;
-    var alpha = opacity * 255 / 100 * parentAlpha ~/ 255;
+    // These opacity values are in the range 0 to 100.
+    var transformOpacity = transform.opacity?.value ?? 100;
+    var textRangeOpacity =
+        _opacityAnimation != null && _isIndexInRangeSelection(indexInDocument)
+        ? _opacityAnimation!.value
+        : 100;
+
+    // This alpha value needs to be in the range 0 to 255 to be applied to the Paint
+    // instances. We map the layer transform's opacity into that range and multiply it by
+    // the fractional opacity of the text range and the parent.
+    var alpha =
+        (transformOpacity *
+                255 /
+                100 *
+                (textRangeOpacity / 100) *
+                parentAlpha /
+                255)
+            .round();
     _fillPaint.setAlpha(alpha);
     _strokePaint.setAlpha(alpha);
 
     if (_strokeWidthCallbackAnimation != null) {
       _strokePaint.strokeWidth = _strokeWidthCallbackAnimation!.value;
-    } else if (_strokeWidthAnimation != null) {
+    } else if (_strokeWidthAnimation != null &&
+        _isIndexInRangeSelection(indexInDocument)) {
       _strokePaint.strokeWidth = _strokeWidthAnimation!.value;
     } else {
       _strokePaint.strokeWidth = documentData.strokeWidth;
     }
   }
 
+  bool _isIndexInRangeSelection(int indexInDocument) {
+    var textLength = _textAnimation.value.text.length;
+    var textRangeStartAnimation = _textRangeStartAnimation;
+    var textRangeEndAnimation = _textRangeEndAnimation;
+    if (textRangeStartAnimation != null && textRangeEndAnimation != null) {
+      // After Effects supports reversed text ranges where the start index is greater than
+      // the end index. For the purposes of determining if the given index is inside of the
+      // range, we take the start as the smaller value.
+      var rangeStart = math.min(
+        textRangeStartAnimation.value,
+        textRangeEndAnimation.value,
+      );
+      var rangeEnd = math.max(
+        textRangeStartAnimation.value,
+        textRangeEndAnimation.value,
+      );
+
+      var textRangeOffsetAnimation = _textRangeOffsetAnimation;
+      if (textRangeOffsetAnimation != null) {
+        var offset = textRangeOffsetAnimation.value;
+        rangeStart += offset;
+        rangeEnd += offset;
+      }
+
+      if (_textRangeUnits == TextRangeUnits.charIndex) {
+        return indexInDocument >= rangeStart && indexInDocument < rangeEnd;
+      } else {
+        var currentIndexAsPercent = indexInDocument / textLength * 100;
+        return currentIndexAsPercent >= rangeStart &&
+            currentIndexAsPercent < rangeEnd;
+      }
+    }
+    return true;
+  }
+
   void _drawTextWithGlyphs(
     DocumentData documentData,
     Matrix4 parentMatrix,
     Font font,
     Canvas canvas,
+    int parentAlpha,
   ) {
     double textSize;
     if (_textSizeCallbackAnimation != null) {
@@ -211,6 +324,7 @@ class TextLayer extends BaseLayer {
           parentScale,
           fontScale,
           tracking,
+          parentAlpha,
         );
 
         canvas.restore();
@@ -226,21 +340,37 @@ class TextLayer extends BaseLayer {
     double parentScale,
     double fontScale,
     double tracking,
+    int parentAlpha,
   ) {
+    var index = 0;
     for (var c in text) {
       var characterHash = FontCharacter.hashFor(c, font.family, font.style);
       var character = _composition.characters[characterHash];
       if (character == null) {
         // Something is wrong. Potentially, they didn't export the text as a glyph.
+        index++;
         continue;
       }
-      _drawCharacterAsGlyph(character, fontScale, documentData, canvas);
+      _drawCharacterAsGlyph(
+        character,
+        fontScale,
+        documentData,
+        canvas,
+        index,
+        parentAlpha,
+      );
       var tx = character.width * fontScale + tracking;
       canvas.translate(tx, 0);
+      index++;
     }
   }
 
-  void _drawTextWithFont(DocumentData documentData, Font font, Canvas canvas) {
+  void _drawTextWithFont(
+    DocumentData documentData,
+    Font font,
+    Canvas canvas,
+    int parentAlpha,
+  ) {
     var textStyle = lottieDrawable.getTextStyle(font.family, font.style);
     var text = documentData.text;
     var textDelegate = lottieDrawable.delegates?.text;
@@ -270,6 +400,7 @@ class TextLayer extends BaseLayer {
     var textLines = _getTextLines(text);
     var textLineCount = textLines.length;
     var lineIndex = -1;
+    var characterIndexAtStartOfLine = 0;
     for (var i = 0; i < textLineCount; i++) {
       var textLine = textLines[i];
       var boxWidth = documentData.boxSize?.dx ?? 0.0;
@@ -288,7 +419,17 @@ class TextLayer extends BaseLayer {
         canvas.save();
 
         _offsetCanvas(canvas, documentData, lineIndex, line.width);
-        _drawFontTextLine(line.text, textStyle, documentData, canvas, tracking);
+        _drawFontTextLine(
+          line.text,
+          textStyle,
+          documentData,
+          canvas,
+          tracking,
+          characterIndexAtStartOfLine,
+          parentAlpha,
+        );
+
+        characterIndexAtStartOfLine += line.text.length;
 
         canvas.restore();
       }
@@ -332,16 +473,28 @@ class TextLayer extends BaseLayer {
     return textLinesArray.map((l) => l.characters).toList();
   }
 
+  /// [characterIndexAtStartOfLine] is the index within the overall document of the character
+  /// at the start of the line.
   void _drawFontTextLine(
     Characters text,
     TextStyle textStyle,
     DocumentData documentData,
     Canvas canvas,
     double tracking,
+    int characterIndexAtStartOfLine,
+    int parentAlpha,
   ) {
+    var index = 0;
     for (var char in text) {
       var charString = char;
-      _drawCharacterFromFont(charString, textStyle, documentData, canvas);
+      _drawCharacterFromFont(
+        charString,
+        textStyle,
+        documentData,
+        canvas,
+        characterIndexAtStartOfLine + index,
+        parentAlpha,
+      );
       var textPainter = TextPainter(
         text: TextSpan(text: charString, style: textStyle),
         textDirection: _textDirection,
@@ -350,6 +503,7 @@ class TextLayer extends BaseLayer {
       var charWidth = textPainter.width;
       var tx = charWidth + tracking;
       canvas.translate(tx, 0);
+      index++;
     }
   }
 
@@ -463,7 +617,10 @@ class TextLayer extends BaseLayer {
     double fontScale,
     DocumentData documentData,
     Canvas canvas,
+    int indexInDocument,
+    int parentAlpha,
   ) {
+    _configurePaint(documentData, parentAlpha, indexInDocument);
     var contentGroups = _getContentsForCharacter(character);
     for (var j = 0; j < contentGroups.length; j++) {
       var path = contentGroups[j].getPath();
@@ -496,7 +653,10 @@ class TextLayer extends BaseLayer {
     TextStyle textStyle,
     DocumentData documentData,
     Canvas canvas,
+    int indexInDocument,
+    int parentAlpha,
   ) {
+    _configurePaint(documentData, parentAlpha, indexInDocument);
     if (documentData.strokeOverFill) {
       _drawCharacter(character, textStyle, _fillPaint, canvas);
       _drawCharacter(character, textStyle, _strokePaint, canvas);
diff --git a/lottie/lib/src/parser/animatable_text_properties_parser.dart b/lottie/lib/src/parser/animatable_text_properties_parser.dart
index 781977a..51a1a8a 100644
--- a/lottie/lib/src/parser/animatable_text_properties_parser.dart
+++ b/lottie/lib/src/parser/animatable_text_properties_parser.dart
@@ -1,14 +1,35 @@
 import '../composition.dart';
 import '../model/animatable/animatable_color_value.dart';
 import '../model/animatable/animatable_double_value.dart';
+import '../model/animatable/animatable_integer_value.dart';
 import '../model/animatable/animatable_text_properties.dart';
+import '../model/animatable/animatable_text_range_selector.dart';
+import '../model/animatable/animatable_text_style.dart';
+import '../model/content/text_range_units.dart';
+import '../value/keyframe.dart';
 import 'animatable_value_parser.dart';
 import 'moshi/json_reader.dart';
 
 class AnimatableTextPropertiesParser {
-  static final JsonReaderOptions _propertiesNames = JsonReaderOptions.of(['a']);
+  static final JsonReaderOptions _propertiesNames = JsonReaderOptions.of([
+    's', // Range selector
+    'a', // Text style for this range
+  ]);
+  static final JsonReaderOptions _animatableRangePropertiesNames =
+      JsonReaderOptions.of([
+        's', // start
+        'e', // end
+        'o', // offset
+        'r', // text range units (percent or index)
+      ]);
   static final JsonReaderOptions _animatablePropertiesNames =
-      JsonReaderOptions.of(['fc', 'sc', 'sw', 't']);
+      JsonReaderOptions.of([
+        'fc',
+        'sc',
+        'sw',
+        't',
+        'o', // opacity
+      ]);
 
   AnimatableTextPropertiesParser();
 
@@ -16,27 +37,84 @@ class AnimatableTextPropertiesParser {
     JsonReader reader,
     LottieComposition composition,
   ) {
-    AnimatableTextProperties? anim;
+    AnimatableTextStyle? textStyle;
+    AnimatableTextRangeSelector? rangeSelector;
 
     reader.beginObject();
     while (reader.hasNext()) {
       switch (reader.selectName(_propertiesNames)) {
-        case 0:
-          anim = _parseAnimatableTextProperties(reader, composition);
+        case 0: // Range selector
+          rangeSelector = _parseAnimatableTextRangeSelector(
+            reader,
+            composition,
+          );
+        case 1: // Text style for this range
+          textStyle = _parseAnimatableTextStyle(reader, composition);
         default:
           reader.skipName();
           reader.skipValue();
       }
     }
     reader.endObject();
-    if (anim == null) {
-      // Not sure if this is possible.
-      return AnimatableTextProperties();
-    }
-    return anim;
+
+    return AnimatableTextProperties(
+      textStyle: textStyle,
+      rangeSelector: rangeSelector,
+    );
   }
 
-  static AnimatableTextProperties _parseAnimatableTextProperties(
+  static AnimatableTextRangeSelector _parseAnimatableTextRangeSelector(
+    JsonReader reader,
+    LottieComposition composition,
+  ) {
+    AnimatableIntegerValue? start;
+    AnimatableIntegerValue? end;
+    AnimatableIntegerValue? offset;
+    var units = TextRangeUnits.charIndex;
+
+    reader.beginObject();
+    while (reader.hasNext()) {
+      switch (reader.selectName(_animatableRangePropertiesNames)) {
+        case 0: // start
+          start = AnimatableValueParser.parseInteger(reader, composition);
+        case 1: // end
+          end = AnimatableValueParser.parseInteger(reader, composition);
+        case 2: // offset
+          offset = AnimatableValueParser.parseInteger(reader, composition);
+        case 3: // text range units (percent or index)
+          var textRangeUnits = reader.nextInt();
+          if (textRangeUnits != 1 && textRangeUnits != 2) {
+            composition.addWarning(
+              'Unsupported text range units: $textRangeUnits',
+            );
+            units = TextRangeUnits.charIndex;
+          } else {
+            units = textRangeUnits == 1
+                ? TextRangeUnits.percent
+                : TextRangeUnits.charIndex;
+          }
+        default:
+          reader.skipName();
+          reader.skipValue();
+      }
+    }
+    reader.endObject();
+
+    // If no start value is provided, default to a non-animated value of 0 to match
+    // After Effects/Bodymovin.
+    if (start == null && end != null) {
+      start = AnimatableIntegerValue.fromKeyframes([Keyframe.nonAnimated(0)]);
+    }
+
+    return AnimatableTextRangeSelector(
+      start: start,
+      end: end,
+      offset: offset,
+      units: units,
+    );
+  }
+
+  static AnimatableTextStyle _parseAnimatableTextStyle(
     JsonReader reader,
     LottieComposition composition,
   ) {
@@ -44,6 +122,7 @@ class AnimatableTextPropertiesParser {
     AnimatableColorValue? stroke;
     AnimatableDoubleValue? strokeWidth;
     AnimatableDoubleValue? tracking;
+    AnimatableIntegerValue? opacity;
 
     reader.beginObject();
     while (reader.hasNext()) {
@@ -56,6 +135,8 @@ class AnimatableTextPropertiesParser {
           strokeWidth = AnimatableValueParser.parseFloat(reader, composition);
         case 3:
           tracking = AnimatableValueParser.parseFloat(reader, composition);
+        case 4: // opacity
+          opacity = AnimatableValueParser.parseInteger(reader, composition);
         default:
           reader.skipName();
           reader.skipValue();
@@ -63,11 +144,12 @@ class AnimatableTextPropertiesParser {
     }
     reader.endObject();
 
-    return AnimatableTextProperties(
+    return AnimatableTextStyle(
       color: color,
       stroke: stroke,
       strokeWidth: strokeWidth,
       tracking: tracking,
+      opacity: opacity,
     );
   }
 }
diff --git a/lottie/lib/src/parser/animatable_transform_parser.dart b/lottie/lib/src/parser/animatable_transform_parser.dart
index 07908dd..564697b 100644
--- a/lottie/lib/src/parser/animatable_transform_parser.dart
+++ b/lottie/lib/src/parser/animatable_transform_parser.dart
@@ -26,6 +26,8 @@ class AnimatableTransformParser {
     'eo',
     'sk',
     'sa',
+    'rx',
+    'ry',
   ]);
   static final JsonReaderOptions _animatableNames = JsonReaderOptions.of(['k']);
 
@@ -37,6 +39,8 @@ class AnimatableTransformParser {
     AnimatableValue<Offset, Offset>? position;
     AnimatableScaleValue? scale;
     AnimatableDoubleValue? rotation;
+    AnimatableDoubleValue? rotationX;
+    AnimatableDoubleValue? rotationY;
     AnimatableIntegerValue? opacity;
     AnimatableDoubleValue? startOpacity;
     AnimatableDoubleValue? endOpacity;
@@ -74,10 +78,7 @@ class AnimatableTransformParser {
           scale = AnimatableValueParser.parseScale(reader, composition);
         case 3:
         case 4:
-          if (name == 3) {
-            composition.addWarning("Lottie doesn't support 3D layers.");
-          }
-
+          // Both "rz" (3D Z rotation) and "r" (2D rotation) feed the Z rotation.
           // Sometimes split path rotation gets exported like:
           //         "rz": {
           //           "a": 1,
@@ -116,6 +117,10 @@ class AnimatableTransformParser {
           skew = AnimatableValueParser.parseFloat(reader, composition);
         case 9:
           skewAngle = AnimatableValueParser.parseFloat(reader, composition);
+        case 10:
+          rotationX = AnimatableValueParser.parseFloat(reader, composition);
+        case 11:
+          rotationY = AnimatableValueParser.parseFloat(reader, composition);
         default:
           reader.skipName();
           reader.skipValue();
@@ -134,6 +139,12 @@ class AnimatableTransformParser {
     if (isRotationIdentity(rotation)) {
       rotation = null;
     }
+    if (isRotationIdentity(rotationX)) {
+      rotationX = null;
+    }
+    if (isRotationIdentity(rotationY)) {
+      rotationY = null;
+    }
     if (isScaleIdentity(scale)) {
       scale = null;
     }
@@ -148,6 +159,8 @@ class AnimatableTransformParser {
       position: position,
       scale: scale,
       rotation: rotation,
+      rotationX: rotationX,
+      rotationY: rotationY,
       opacity: opacity,
       startOpacity: startOpacity,
       endOpacity: endOpacity,
diff --git a/lottie/lib/src/providers/file_provider_io.dart b/lottie/lib/src/providers/file_provider_io.dart
index 706213c..7ec5b7f 100644
--- a/lottie/lib/src/providers/file_provider_io.dart
+++ b/lottie/lib/src/providers/file_provider_io.dart
@@ -69,7 +69,7 @@ class FileLottie extends LottieProvider {
   }
 
   @override
-  int get hashCode => file.hashCode;
+  int get hashCode => file.path.hashCode;
 
   @override
   String toString() => '$runtimeType(file: ${file.path})';
diff --git a/lottie/lib/src/render_cache/key.dart b/lottie/lib/src/render_cache/key.dart
index 79c773b..534c8b2 100644
--- a/lottie/lib/src/render_cache/key.dart
+++ b/lottie/lib/src/render_cache/key.dart
@@ -35,3 +35,34 @@ class CacheKey {
   String toString() =>
       'CacheKey(${composition.hashCode}, $size, $config, $delegates)';
 }
+
+/// A [CacheKey] for the raster cache, where frames are rasterized and cropped
+/// to [sourceRect] ahead of time. Unlike the drawing-commands cache (whose
+/// cached [Picture] is recorded in full composition space and cropped fresh
+/// on every draw), the same [composition]/[size] with a different
+/// [sourceRect] (i.e. a different `fit`/`alignment`) must not share a cached
+/// image.
+@immutable
+class RasterCacheKey extends CacheKey {
+  final Rect sourceRect;
+
+  RasterCacheKey({
+    required super.composition,
+    required super.size,
+    required this.sourceRect,
+    required super.config,
+    required super.delegates,
+  });
+
+  @override
+  int get hashCode => Object.hash(super.hashCode, sourceRect);
+
+  @override
+  bool operator ==(other) =>
+      other is RasterCacheKey &&
+      super == other &&
+      other.sourceRect == sourceRect;
+
+  @override
+  String toString() => '${super.toString()}, sourceRect: $sourceRect';
+}
diff --git a/lottie/lib/src/render_cache/store_drawing.dart b/lottie/lib/src/render_cache/store_drawing.dart
index ffebce9..2c5e76a 100644
--- a/lottie/lib/src/render_cache/store_drawing.dart
+++ b/lottie/lib/src/render_cache/store_drawing.dart
@@ -2,6 +2,7 @@ import 'dart:ui';
 import 'package:flutter/rendering.dart';
 import '../lottie_drawable.dart';
 import '../render_cache.dart';
+import '../utils.dart';
 import 'key.dart';
 import 'store.dart';
 
@@ -107,14 +108,8 @@ base class DrawingEntry extends CacheEntry<CacheKey> {
       drawable.compositionLayer.draw(cacheCanvas, _matrix, parentAlpha: 255);
     });
     if (cachedImage != null) {
-      var destinationSize = destinationRect.size;
-
       canvas.save();
-      canvas.translate(destinationRect.left, destinationRect.top);
-      canvas.scale(
-        destinationSize.width / sourceRect.width,
-        destinationSize.height / sourceRect.height,
-      );
+      canvas.applySourceToDestinationTransform(sourceRect, destinationRect);
       canvas.drawPicture(cachedImage);
       canvas.restore();
 
diff --git a/lottie/lib/src/render_cache/store_raster.dart b/lottie/lib/src/render_cache/store_raster.dart
index 2ddf8a3..242e29f 100644
--- a/lottie/lib/src/render_cache/store_raster.dart
+++ b/lottie/lib/src/render_cache/store_raster.dart
@@ -2,6 +2,7 @@ import 'dart:ui';
 import 'package:flutter/rendering.dart';
 import '../lottie_drawable.dart';
 import '../render_cache.dart';
+import '../utils.dart';
 import 'key.dart';
 import 'store.dart';
 
@@ -27,7 +28,7 @@ class RenderCacheRaster implements RenderCache {
 }
 
 class RasterAnimationCache extends AnimationCache {
-  final Handle<RasterEntry, CacheKey> handle;
+  final Handle<RasterEntry, RasterCacheKey> handle;
 
   RasterAnimationCache(this.handle);
 
@@ -52,9 +53,10 @@ class RasterAnimationCache extends AnimationCache {
       (rect.size.height * devicePixelRatio).roundToDouble(),
     );
 
-    var key = CacheKey(
+    var key = RasterCacheKey(
       composition: drawable.composition,
       size: cacheImageSize,
+      sourceRect: sourceRect,
       config: drawable.configHash(),
       delegates: drawable.delegatesHash(),
     );
@@ -72,7 +74,7 @@ class RasterAnimationCache extends AnimationCache {
   }
 }
 
-class RasterStore extends Store<RasterEntry, CacheKey> {
+class RasterStore extends Store<RasterEntry, RasterCacheKey> {
   final int maxMemory;
 
   RasterStore(this.maxMemory);
@@ -88,7 +90,7 @@ class RasterStore extends Store<RasterEntry, CacheKey> {
   }
 
   @override
-  RasterEntry createEntry(CacheKey key) {
+  RasterEntry createEntry(RasterCacheKey key) {
     return RasterEntry(this, key);
   }
 
@@ -97,7 +99,7 @@ class RasterStore extends Store<RasterEntry, CacheKey> {
   }
 }
 
-base class RasterEntry extends CacheEntry<CacheKey> {
+base class RasterEntry extends CacheEntry<RasterCacheKey> {
   final RasterStore store;
   final images = <double, Image>{};
   int currentMemory = 0;
@@ -146,13 +148,7 @@ base class RasterEntry extends CacheEntry<CacheKey> {
     var cacheImageSize = key.size;
 
     var cachedImage = imageForProgress(progress, (cacheCanvas) {
-      _matrix.setIdentity();
-      _matrix.scaleByDouble(
-        cacheImageSize.width / sourceSize.width,
-        cacheImageSize.height / sourceSize.height,
-        cacheImageSize.width / sourceSize.width,
-        1,
-      );
+      _matrix.setSourceToDestinationScale(sourceRect, cacheImageSize);
       drawable.compositionLayer.draw(cacheCanvas, _matrix, parentAlpha: 255);
     });
     if (cachedImage != null) {
diff --git a/lottie/lib/src/render_lottie.dart b/lottie/lib/src/render_lottie.dart
index f23f655..f07c6e6 100644
--- a/lottie/lib/src/render_lottie.dart
+++ b/lottie/lib/src/render_lottie.dart
@@ -17,13 +17,13 @@ class RenderLottie extends RenderBox {
     bool? enableApplyingOpacityToLayers,
     double progress = 0.0,
     FrameRate? frameRate,
-    double? width,
-    double? height,
-    BoxFit? fit,
-    AlignmentGeometry alignment = Alignment.center,
+    this._width,
+    this._height,
+    this._fit,
+    this._alignment = Alignment.center,
     FilterQuality? filterQuality,
     RenderCache? renderCache,
-    required double devicePixelRatio,
+    required this._devicePixelRatio,
   }) : assert(progress >= 0.0 && progress <= 1.0),
        assert(
          renderCache == null || frameRate != FrameRate.max,
@@ -39,12 +39,7 @@ class RenderLottie extends RenderBox {
                    enableApplyingOpacityToLayers ?? false
                ..filterQuality = filterQuality)
            : null,
-       _width = width,
-       _height = height,
-       _fit = fit,
-       _alignment = alignment,
-       _renderCache = renderCache,
-       _devicePixelRatio = devicePixelRatio;
+       _renderCache = renderCache;
 
   /// The lottie composition to display.
   LottieComposition? get composition => _drawable?.composition;
diff --git a/lottie/lib/src/utils.dart b/lottie/lib/src/utils.dart
index c4f0884..51c79d7 100644
--- a/lottie/lib/src/utils.dart
+++ b/lottie/lib/src/utils.dart
@@ -69,6 +69,37 @@ extension Matrix4Extension on Matrix4 {
 
     return p0.x == p1.x || p0.y == p1.y;
   }
+
+  /// Sets this matrix to map `p -> (p - sourceRect.topLeft) * scale`,
+  /// i.e. crop to [sourceRect] and scale it to fit [destinationSize].
+  void setSourceToDestinationScale(Rect sourceRect, Size destinationSize) {
+    var scaleX = destinationSize.width / sourceRect.width;
+    var scaleY = destinationSize.height / sourceRect.height;
+    setIdentity();
+    translateByDouble(
+      -sourceRect.left * scaleX,
+      -sourceRect.top * scaleY,
+      0,
+      1,
+    );
+    scaleByDouble(scaleX, scaleY, scaleX, 1);
+  }
+}
+
+extension CanvasExtension on Canvas {
+  /// Applies `destinationRect.topLeft + (p - sourceRect.topLeft) * scale`
+  /// to subsequent drawing, i.e. positions and crops/scales a source rect
+  /// into a destination rect.
+  void applySourceToDestinationTransform(
+    Rect sourceRect,
+    Rect destinationRect,
+  ) {
+    var scaleX = destinationRect.width / sourceRect.width;
+    var scaleY = destinationRect.height / sourceRect.height;
+    translate(destinationRect.left, destinationRect.top);
+    scale(scaleX, scaleY);
+    translate(-sourceRect.left, -sourceRect.top);
+  }
 }
 
 extension OffsetExtension on Offset {
diff --git a/lottie/lib/src/value_delegate.dart b/lottie/lib/src/value_delegate.dart
index 7bd6e53..24750c3 100644
--- a/lottie/lib/src/value_delegate.dart
+++ b/lottie/lib/src/value_delegate.dart
@@ -394,6 +394,14 @@ class ValueDelegate<T> {
     DropShadow Function(LottieFrameInfo<DropShadow>)? callback,
   }) => ValueDelegate._(keyPath, LottieProperty.dropShadow, value, callback);
 
+  /// Replace the outline of a shape at runtime. The callback receives the start/end paths of
+  /// the underlying shape keyframe and returns the [Path] to draw.
+  static ValueDelegate<Path> path(
+    List<String> keyPath, {
+    Path? value,
+    Path Function(LottieFrameInfo<Path>)? callback,
+  }) => ValueDelegate._(keyPath, LottieProperty.path, value, callback);
+
   ResolvedValueDelegate<T>? _resolved;
   ResolvedValueDelegate _resolve(List<KeyPath> resolvedPaths) {
     _resolved = ResolvedValueDelegate<T>(this, resolvedPaths);
diff --git a/lottie/pubspec.yaml b/lottie/pubspec.yaml
index e234f91..57adf2f 100644
--- a/lottie/pubspec.yaml
+++ b/lottie/pubspec.yaml
@@ -1,15 +1,18 @@
 name: lottie
 description: Render After Effects animations natively on Flutter. This package is a pure Dart implementation of a Lottie player.
-version: 3.3.2
+version: 3.5.1
 repository: https://github.com/xvrh/lottie-flutter
 
+workspace:
+  - example
+
 funding:
   - https://www.buymeacoffee.com/xvrh
   - https://github.com/sponsors/xvrh
 
 environment:
-  sdk: '^3.9.0'
-  flutter: '>=3.35.0'
+  sdk: '^3.12.0'
+  flutter: '>=3.44.0'
 
 dependencies:
   archive: ^4.0.0
diff --git a/lottie/test/characters_test.dart b/lottie/test/characters_test.dart
deleted file mode 100644
index c8fade0..0000000
--- a/lottie/test/characters_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/src/utils/characters.dart';
-
-void main() {
-  test('TrimTrailing characters', () {
-    expect(
-      'ab c d  '.characters.trimTrailing(' '.characters),
-      'ab c d'.characters,
-    );
-    expect(' '.characters.trimTrailing(' '.characters), ''.characters);
-    expect(' a '.characters.trimTrailing(' '.characters), ' a'.characters);
-    expect(' aa'.characters.trimTrailing('a'.characters), ' '.characters);
-    expect('aabcbc'.characters.trimTrailing('bc'.characters), 'aa'.characters);
-    expect('bcbc'.characters.trimTrailing('bc'.characters), ''.characters);
-    expect(''.characters.trimTrailing(' '.characters), ''.characters);
-    expect(''.characters.trimTrailing('bc'.characters), ''.characters);
-    expect(' '.characters.trimTrailing('bc'.characters), ' '.characters);
-    expect(' bc'.characters.trimTrailing('bc'.characters), ' '.characters);
-  });
-
-  test('TrimLeading characters', () {
-    expect(' ab '.characters.trimLeading(' '.characters), 'ab '.characters);
-    expect(' '.characters.trimLeading(' '.characters), ''.characters);
-    expect('   '.characters.trimLeading(' '.characters), ''.characters);
-    expect('   a'.characters.trimLeading(' '.characters), 'a'.characters);
-    expect('abc'.characters.trimLeading('ab'.characters), 'c'.characters);
-    expect('ababc'.characters.trimLeading('ab'.characters), 'c'.characters);
-    expect('abab'.characters.trimLeading('ab'.characters), ''.characters);
-    expect('ababcd'.characters.trimLeading('ab'.characters), 'cd'.characters);
-    expect(''.characters.trimLeading(''.characters), ''.characters);
-  });
-
-  test('Trim characters', () {
-    expect(' ab '.characters.trim(' '.characters), 'ab'.characters);
-  });
-}
diff --git a/lottie/test/compositions_test.dart b/lottie/test/compositions_test.dart
deleted file mode 100644
index ca9c4ef..0000000
--- a/lottie/test/compositions_test.dart
+++ /dev/null
@@ -1,32 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/src/composition.dart';
-import 'package:lottie/src/lottie_drawable.dart';
-import 'package:path/path.dart' as p;
-
-void main() {
-  var assetsPath = 'example/assets';
-  for (var file
-      in Directory(assetsPath)
-          .listSync(recursive: true)
-          .whereType<File>()
-          .where((f) => f.path.endsWith('.json'))) {
-    test('Parse and draw ${p.relative(file.path, from: assetsPath)}', () async {
-      var composition = await LottieComposition.fromBytes(
-        file.readAsBytesSync(),
-      );
-      expect(composition, isNotNull);
-
-      var drawable = LottieDrawable(composition);
-
-      var recorder = PictureRecorder();
-      var canvas = Canvas(recorder);
-      for (var progress = 0; progress <= 100; progress += 20) {
-        drawable
-          ..setProgress(progress / 100)
-          ..draw(canvas, const Rect.fromLTWH(0, 0, 200, 200));
-      }
-    });
-  }
-}
diff --git a/lottie/test/data/loading_indicator.json b/lottie/test/data/loading_indicator.json
deleted file mode 100644
index f44b919..0000000
--- a/lottie/test/data/loading_indicator.json
+++ /dev/null
@@ -1 +0,0 @@
-{"v":"5.5.7","fr":29.9700012207031,"ip":35.0000014255792,"op":129.000005254278,"w":300,"h":300,"nm":"Box Icon_Test","ddd":0,"assets":[],"layers":[{"ddd":0,"ind":1,"ty":4,"nm":"Kontur4","sr":1,"ks":{"o":{"a":0,"k":100,"ix":11},"r":{"a":0,"k":180,"ix":10},"p":{"a":0,"k":[150,150,0],"ix":2},"a":{"a":0,"k":[0,0,0],"ix":1},"s":{"a":0,"k":[95,95,100],"ix":6}},"ao":0,"shapes":[{"ty":"gr","it":[{"ty":"rc","d":3,"s":{"a":0,"k":[300,300],"ix":2},"p":{"a":0,"k":[0,0],"ix":3},"r":{"a":0,"k":45,"ix":4},"nm":"Rechteckpfad: 1","mn":"ADBE Vector Shape - Rect","hd":false},{"ty":"st","c":{"a":0,"k":[0.266666666667,0.839215746113,0.172549019608,1],"ix":3},"o":{"a":0,"k":100,"ix":4},"w":{"a":0,"k":16.5,"ix":5},"lc":2,"lj":2,"bm":0,"nm":"Kontur 1","mn":"ADBE Vector Graphic - Stroke","hd":false},{"ty":"tr","p":{"a":0,"k":[0,0],"ix":2},"a":{"a":0,"k":[0,0],"ix":1},"s":{"a":0,"k":[100,100],"ix":3},"r":{"a":0,"k":0,"ix":6},"o":{"a":0,"k":100,"ix":7},"sk":{"a":0,"k":0,"ix":4},"sa":{"a":0,"k":0,"ix":5},"nm":"Transformieren"}],"nm":"Rechteck 1","np":3,"cix":2,"bm":0,"ix":1,"mn":"ADBE Vector Group","hd":false},{"ty":"tm","s":{"a":1,"k":[{"i":{"x":[0.801],"y":[0.742]},"o":{"x":[0.324],"y":[0]},"t":88,"s":[0]},{"t":127.000005172816,"s":[55]}],"ix":1},"e":{"a":0,"k":0,"ix":2},"o":{"a":1,"k":[{"i":{"x":[0.833],"y":[0.661]},"o":{"x":[0.175],"y":[0]},"t":90,"s":[-124]},{"i":{"x":[0.839],"y":[1]},"o":{"x":[0.167],"y":[0.125]},"t":103,"s":[-100]},{"t":123.000005009893,"s":[0]}],"ix":3},"m":1,"ix":2,"nm":"Pfade trimmen 1","mn":"ADBE Vector Filter - 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\ No newline at end of file
diff --git a/lottie/test/data/static_lottie.json b/lottie/test/data/static_lottie.json
deleted file mode 100644
index cb8efcb..0000000
--- a/lottie/test/data/static_lottie.json
+++ /dev/null
@@ -1,689 +0,0 @@
-{
-  "v": "5.6.6",
-  "ip": 0,
-  "op": 1,
-  "fr": 60,
-  "w": 953,
-  "h": 272,
-  "layers": [
-    {
-      "ind": 2345,
-      "nm": "surface13687",
-      "ao": 0,
-      "ip": 0,
-      "op": 60,
-      "st": 0,
-      "ty": 4,
-      "ks": {
-        "ty": "tr",
-        "o": { "k": 100 },
-        "r": { "k": 0 },
-        "p": { "k": [0, 0] },
-        "a": { "k": [0, 0] },
-        "s": { "k": [133.33, 133.33] },
-        "sk": { "k": 0 },
-        "sa": { "k": 0 }
-      },
-      "shapes": [
-        {
-          "ty": "gr",
-          "hd": false,
-          "nm": "surface13687",
-          "it": [
-            {
-              "ty": "gr",
-              "hd": false,
-              "it": [
-                {
-                  "ty": "sh",
-                  "ks": {
-                    "k": {
-                      "i": [
-                        [0, 0],
-                        [0, 0],
-                        [0, 0],
-                        [20, -0.05],
-                        [0.73, 0.64],
-                        [0, 0]
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-                      "o": [
-                        [0, 0],
-                        [0, 0],
-                        [-20.01, 0.05],
-                        [-1.14, 0.25],
-                        [0, 0],
-                        [0, 0]
-                      ],
-                      "v": [
-                        [79.56, 177.9],
-                        [110.31, 147.43],
-                        [163.43, 200.61],
-                        [103.41, 200.64],
-                        [100.84, 199.21],
-                        [79.55, 177.9]
-                      ],
-                      "c": true
-                    }
-                  }
-                },
-                {
-                  "ty": "fl",
-                  "o": { "k": 100 },
-                  "c": { "k": [0.03, 0.35, 0.61, 1] }
-                },
-                {
-                  "ty": "tr",
-                  "o": { "k": 100 },
-                  "r": { "k": 0 },
-                  "p": { "k": [0, 0] },
-                  "a": { "k": [0, 0] },
-                  "s": { "k": [100, 100] },
-                  "sk": { "k": 0 },
-                  "sa": { "k": 0 },
-                  "hd": false
-                }
-              ]
-            },
-            {
-              "ty": "gr",
-              "hd": false,
-              "it": [
-                {
-                  "ty": "sh",
-                  "ks": {
-                    "k": {
-                      "i": [
-                        [0, 0],
-                        [0, 0],
-                        [0, 0],
-                        [0, 0],
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-                      "o": [
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-                        [0, 0],
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-                      "v": [
-                        [49.02, 147.35],
-                        [79.55, 116.86],
-                        [110.18, 147.3],
-                        [110.31, 147.43],
-                        [79.56, 177.9]
-                      ],
-                      "c": true
-                    }
-                  }
-                },
-                {
-                  "ty": "fl",
-                  "o": { "k": 100 },
-                  "c": { "k": [0.12, 0.74, 0.99, 1] }
-                },
-                {
-                  "ty": "tr",
-                  "o": { "k": 100 },
-                  "r": { "k": 0 },
-                  "p": { "k": [0, 0] },
-                  "a": { "k": [0, 0] },
-                  "s": { "k": [100, 100] },
-                  "sk": { "k": 0 },
-                  "sa": { "k": 0 },
-                  "hd": false
-                }
-              ]
-            },
-            {
-              "ty": "gr",
-              "hd": false,
-              "it": [
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-                  "ty": "sh",
-                  "ks": {
-                    "k": {
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-                        [17.48, -0.07],
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-                        [-1.04, -0.16],
-                        [0, 0],
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-                        [13.93, -0.01],
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-                      "v": [
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-                        [316.33, 45.93],
-                        [316.32, 59.08],
-                        [263.9, 59.1],
-                        [263.05, 62.24],
-                        [263.1, 97.61],
-                        [266.25, 98.46],
-                        [311.07, 98.44],
-                        [311.07, 111.57],
-                        [269.28, 111.57],
-                        [263.07, 111.79],
-                        [262.91, 161.71],
-                        [249.44, 161.6],
-                        [249.43, 48.03],
-                        [249.55, 45.91]
-                      ],
-                      "c": true
-                    }
-                  }
-                },
-                {
-                  "ty": "sh",
-                  "ks": {
-                    "k": {
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-                      "v": [
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-                        [346.23, 45.93],
-                        [346.24, 124.5],
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-                        [332.71, 161.51],
-                        [332.51, 155.98],
-                        [332.52, 45.93]
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-                      "c": true
-                    }
-                  }
-                },
-                {
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-                      "o": [
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-                        [0.03, -4.25],
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-                      ],
-                      "v": [
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-                        [480.46, 55.68],
-                        [480.49, 78.93],
-                        [500.69, 79.16],
-                        [500.59, 91.68],
-                        [480.53, 91.64],
-                        [480.48, 137.95],
-                        [485.71, 149.63],
-                        [500.83, 148.46],
-                        [500.83, 161.93],
-                        [484.87, 163.72],
-                        [467.88, 150],
-                        [466.69, 137.26],
-                        [466.66, 92.16],
-                        [466.32, 91.78],
-                        [452.05, 91.65],
-                        [452.16, 78.92],
-                        [466.66, 78.77]
-                      ],
-                      "c": true
-                    }
-                  }
-                },
-                {
-                  "ty": "sh",
-                  "ks": {
-                    "k": {
-                      "i": [
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-                        [-6.51, 0.04],
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-                        [-0.29, 7.79]
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-                      "o": [
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-                        [-0.01, 4.1],
-                        [4.87, 2.66],
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-                        [-6.76, -0.9],
-                        [-1.53, -3.24],
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-                        [0.5, -7.77],
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-                      ],
-                      "v": [
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-                        [538.54, 55.73],
-                        [538.86, 56.07],
-                        [539.04, 78.99],
-                        [558.58, 78.93],
-                        [558.63, 91.57],
-                        [538.94, 91.63],
-                        [538.87, 138.74],
-                        [544.01, 149.71],
-                        [559.3, 148.29],
-                        [559.29, 161.84],
-                        [543.82, 163.83],
-                        [527.28, 152.93],
-                        [524.75, 142.52],
-                        [524.75, 91.69],
-                        [510.52, 91.69],
-                        [510.55, 78.89],
-                        [524.57, 79.01],
-                        [524.82, 55.63]
-                      ],
-                      "c": true
-                    }
-                  }
-                },
-                {
-                  "ty": "sh",
-                  "ks": {
-                    "k": {
-                      "i": [
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-                        [0, 0],
-                        [-4.83, -5.22],
-                        [-9.97, 3.14],
-                        [-3.59, 6.19],
-                        [-3.96, -1.82],
-                        [11.57, -2.22],
-                        [8.71, 4.7],
-                        [2.22, 12.3],
-                        [-3.55, 8.97],
-                        [-9.7, 4.25]
-                      ],
-                      "o": [
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-                        [6.86, 8],
-                        [7, -2.06],
-                        [3.98, 1.78],
-                        [-5.41, 10.32],
-                        [-9.5, 1.78],
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deleted file mode 100644
index 9991b2e..0000000
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diff --git a/lottie/test/dotlottie.dart b/lottie/test/dotlottie.dart
deleted file mode 100644
index 4d06ed9..0000000
--- a/lottie/test/dotlottie.dart
+++ /dev/null
@@ -1,39 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'package:lottie/src/utils.dart';
-import 'package:path/path.dart' as p;
-
-void main() {
-  testWidgets('Dotlottie', (tester) async {
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var provider = FileLottie(
-      File('example/assets/cat.lottie'),
-      decoder: customDecoder,
-    );
-    await tester.runAsync(() => provider.load());
-
-    await tester.pumpWidget(LottieBuilder(lottie: provider));
-
-    await expectLater(
-      find.byType(Lottie),
-      matchesGoldenFile(p.join('goldens/dotlottie.png')),
-    );
-  });
-}
-
-Future<LottieComposition?> customDecoder(List<int> bytes) {
-  return LottieComposition.decodeZip(
-    bytes,
-    filePicker: (files) {
-      return files.firstWhereOrNull(
-        (f) => f.name.startsWith('animations/') && f.name.endsWith('.json'),
-      );
-    },
-  );
-}
diff --git a/lottie/test/dynamic_image_test.dart b/lottie/test/dynamic_image_test.dart
deleted file mode 100644
index 6d66722..0000000
--- a/lottie/test/dynamic_image_test.dart
+++ /dev/null
@@ -1,96 +0,0 @@
-import 'dart:async';
-import 'dart:io';
-import 'dart:ui' as ui;
-import 'package:flutter/widgets.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'utils.dart';
-
-void main() {
-  testWidgets('Can specify ImageProvider with zip file ', (tester) async {
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var callCount = 0;
-    ImageProvider imageProviderFactory(LottieImageAsset image) {
-      ++callCount;
-      return FileImage(File('example/assets/Images/WeAccept/img_0.png'));
-    }
-
-    Future<LottieComposition?> decoder(List<int> bytes) {
-      return LottieComposition.decodeZip(
-        bytes,
-        imageProviderFactory: imageProviderFactory,
-      );
-    }
-
-    var composition = (await tester.runAsync(
-      () => FileLottie(
-        File('example/assets/spinning_carrousel.zip'),
-        imageProviderFactory: imageProviderFactory,
-        decoder: decoder,
-      ).load(),
-    ))!;
-
-    await tester.pumpWidget(FilmStrip(composition, size: size));
-
-    expect(callCount, 2);
-    await expectLater(
-      find.byType(FilmStrip),
-      matchesGoldenFile('goldens/dynamic_image/zip_with_provider.png'),
-    );
-  });
-
-  testWidgets('Can specify image delegate', (tester) async {
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var image = await tester.runAsync(
-      () async => loadImage(
-        FileImage(File('example/assets/Images/WeAccept/img_0.png')),
-      ),
-    );
-
-    var composition = (await tester.runAsync(
-      () async =>
-          FileLottie(File('example/assets/spinning_carrousel.zip')).load(),
-    ))!;
-
-    var delegates = LottieDelegates(
-      image: (composition, asset) {
-        return image;
-      },
-    );
-    await tester.pumpWidget(
-      FilmStrip(composition, size: size, delegates: delegates),
-    );
-
-    await expectLater(
-      find.byType(FilmStrip),
-      matchesGoldenFile('goldens/dynamic_image/delegate.png'),
-    );
-  });
-}
-
-Future<ui.Image?> loadImage(ImageProvider provider) {
-  var completer = Completer<ui.Image?>();
-  var imageStream = provider.resolve(ImageConfiguration.empty);
-  late ImageStreamListener listener;
-  listener = ImageStreamListener(
-    (image, synchronousLoaded) {
-      imageStream.removeListener(listener);
-
-      completer.complete(image.image);
-    },
-    onError: (dynamic e, _) {
-      imageStream.removeListener(listener);
-
-      completer.complete();
-    },
-  );
-  imageStream.addListener(listener);
-
-  return completer.future;
-}
diff --git a/lottie/test/dynamic_properties_test.dart b/lottie/test/dynamic_properties_test.dart
deleted file mode 100644
index ece7d18..0000000
--- a/lottie/test/dynamic_properties_test.dart
+++ /dev/null
@@ -1,478 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'utils.dart';
-
-void main() {
-  void testGolden(
-    String description,
-    ValueDelegate delegate, {
-    double? progress,
-    String? filePath,
-  }) {
-    filePath ??= 'Tests/Shapes.json';
-
-    var screenshotName = description
-        .toLowerCase()
-        .replaceAll(RegExp('[^a-z0-9 ]'), '')
-        .replaceAll(' ', '_');
-
-    testWidgets(description, (tester) async {
-      var composition = await LottieComposition.fromBytes(
-        File('example/assets/$filePath').readAsBytesSync(),
-      );
-
-      var animation = AnimationController(
-        vsync: tester,
-        duration: composition.duration,
-      );
-      if (progress != null) {
-        animation.value = progress;
-      }
-
-      await tester.pumpWidget(
-        Lottie(
-          composition: composition,
-          controller: animation,
-          delegates: LottieDelegates(values: [delegate]),
-          addRepaintBoundary: false,
-        ),
-      );
-      await tester.pump();
-      await expectLater(
-        find.byType(Lottie),
-        matchesGoldenFile('goldens/dynamic/$screenshotName.png'),
-      );
-
-      if (progress == null || progress == 0) {
-        await tester.pumpWidget(
-          Lottie(
-            composition: composition,
-            controller: animation,
-            delegates: const LottieDelegates(values: []),
-            addRepaintBoundary: false,
-          ),
-        );
-        await tester.pump();
-      }
-    });
-  }
-
-  testGolden(
-    'Fill color (Green)',
-    ValueDelegate.color([
-      'Shape Layer 1',
-      'Rectangle',
-      'Fill 1',
-    ], value: Colors.green),
-  );
-
-  testGolden(
-    'Fill color (Yellow)',
-    ValueDelegate.color([
-      'Shape Layer 1',
-      'Rectangle',
-      'Fill 1',
-    ], value: Colors.yellow),
-  );
-
-  testGolden(
-    'Fill opacity',
-    ValueDelegate.opacity(['Shape Layer 1', 'Rectangle', 'Fill 1'], value: 50),
-  );
-
-  testGolden(
-    'Stroke color',
-    ValueDelegate.strokeColor([
-      'Shape Layer 1',
-      'Rectangle',
-      'Stroke 1',
-    ], value: Colors.green),
-  );
-
-  testGolden(
-    'Stroke width',
-    ValueDelegate.strokeWidth([
-      'Shape Layer 1',
-      'Rectangle',
-      'Stroke 1',
-    ], value: 50),
-  );
-
-  testGolden(
-    'Stroke opacity',
-    ValueDelegate.opacity([
-      'Shape Layer 1',
-      'Rectangle',
-      'Stroke 1',
-    ], value: 50),
-  );
-
-  testGolden(
-    'Transform anchor point',
-    ValueDelegate.transformAnchorPoint([
-      'Shape Layer 1',
-      'Rectangle',
-    ], value: const Offset(20, 20)),
-  );
-
-  testGolden(
-    'Transform position',
-    ValueDelegate.transformPosition([
-      'Shape Layer 1',
-      'Rectangle',
-    ], value: const Offset(20, 20)),
-  );
-
-  testGolden(
-    'Transform position (relative)',
-    ValueDelegate.transformPosition([
-      'Shape Layer 1',
-      'Rectangle',
-    ], relative: const Offset(20, 20)),
-  );
-
-  testGolden(
-    'Transform opacity',
-    ValueDelegate.transformOpacity(['Shape Layer 1', 'Rectangle'], value: 50),
-  );
-
-  testGolden(
-    'Transform rotation',
-    ValueDelegate.transformRotation(['Shape Layer 1', 'Rectangle'], value: 45),
-  );
-
-  testGolden(
-    'Transform scale',
-    ValueDelegate.transformScale([
-      'Shape Layer 1',
-      'Rectangle',
-    ], value: const Offset(0.5, 0.5)),
-  );
-
-  testGolden(
-    'Rectangle corner roundedness',
-    ValueDelegate.cornerRadius([
-      'Shape Layer 1',
-      'Rectangle',
-      'Rectangle Path 1',
-    ], value: 7),
-  );
-
-  testGolden(
-    'Rectangle position',
-    ValueDelegate.position([
-      'Shape Layer 1',
-      'Rectangle',
-      'Rectangle Path 1',
-    ], relative: const Offset(20, 20)),
-  );
-
-  testGolden(
-    'Rectangle size',
-    ValueDelegate.rectangleSize([
-      'Shape Layer 1',
-      'Rectangle',
-      'Rectangle Path 1',
-    ], relative: const Offset(30, 40)),
-  );
-
-  testGolden(
-    'Ellipse position',
-    ValueDelegate.position([
-      'Shape Layer 1',
-      'Ellipse',
-      'Ellipse Path 1',
-    ], relative: const Offset(20, 20)),
-  );
-
-  testGolden(
-    'Ellipse size',
-    ValueDelegate.ellipseSize([
-      'Shape Layer 1',
-      'Ellipse',
-      'Ellipse Path 1',
-    ], relative: const Offset(40, 60)),
-  );
-
-  testGolden(
-    'Star points',
-    ValueDelegate.polystarPoints([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 8),
-  );
-
-  testGolden(
-    'Star rotation',
-    ValueDelegate.polystarRotation([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 10),
-  );
-
-  testGolden(
-    'Star position',
-    ValueDelegate.position([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], relative: const Offset(20, 20)),
-  );
-
-  testGolden(
-    'Star inner radius',
-    ValueDelegate.polystarInnerRadius([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 10),
-  );
-
-  testGolden(
-    'Star inner roundedness',
-    ValueDelegate.polystarInnerRoundedness([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 100),
-  );
-
-  testGolden(
-    'Star outer radius',
-    ValueDelegate.polystarOuterRadius([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 60),
-  );
-
-  testGolden(
-    'Star outer roundedness',
-    ValueDelegate.polystarOuterRoundedness([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 100),
-  );
-
-  testGolden(
-    'Polygon points',
-    ValueDelegate.polystarPoints([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 8),
-  );
-
-  testGolden(
-    'Polygon rotation',
-    ValueDelegate.polystarRotation([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 10),
-  );
-
-  testGolden(
-    'Polygon position',
-    ValueDelegate.position([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], relative: const Offset(20, 20)),
-  );
-
-  testGolden(
-    'Polygon radius',
-    ValueDelegate.polystarOuterRadius([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], relative: 60),
-  );
-
-  testGolden(
-    'Polygon roundedness',
-    ValueDelegate.polystarOuterRoundedness([
-      'Shape Layer 1',
-      'Star',
-      'Polystar Path 1',
-    ], value: 100),
-  );
-
-  testGolden(
-    'Repeater transform position',
-    ValueDelegate.transformPosition([
-      'Shape Layer 1',
-      'Repeater Shape',
-      'Repeater 1',
-    ], relative: const Offset(100, 100)),
-  );
-
-  testGolden(
-    'Repeater transform start opacity',
-    ValueDelegate.transformStartOpacity([
-      'Shape Layer 1',
-      'Repeater Shape',
-      'Repeater 1',
-    ], value: 25),
-  );
-
-  testGolden(
-    'Repeater transform end opacity',
-    ValueDelegate.transformEndOpacity([
-      'Shape Layer 1',
-      'Repeater Shape',
-      'Repeater 1',
-    ], value: 25),
-  );
-
-  testGolden(
-    'Repeater transform rotation',
-    ValueDelegate.transformRotation([
-      'Shape Layer 1',
-      'Repeater Shape',
-      'Repeater 1',
-    ], value: 45),
-  );
-
-  testGolden(
-    'Repeater transform scale',
-    ValueDelegate.transformScale([
-      'Shape Layer 1',
-      'Repeater Shape',
-      'Repeater 1',
-    ], value: const Offset(2, 2)),
-  );
-
-  testGolden(
-    'Time remapping',
-    ValueDelegate.timeRemap(['Circle 1'], value: 1),
-    progress: 0.1,
-  );
-
-  testGolden(
-    'Color Filter',
-    ValueDelegate.colorFilter([
-      '**',
-    ], value: const ColorFilter.mode(Colors.green, BlendMode.srcATop)),
-  );
-
-  testGolden('Null Color Filter', ValueDelegate.colorFilter(['**']));
-
-  testGolden(
-    'Matte property',
-    ValueDelegate.rectangleSize([
-      'Shape Layer 1',
-      'Rectangle 1',
-      'Rectangle Path 1',
-    ], value: const Offset(50, 50)),
-    filePath: 'Tests/TrackMattes.json',
-  );
-
-  testGolden('Blur', ValueDelegate.blurRadius(['**'], value: 10));
-
-  testGolden(
-    'Drop shadow',
-    ValueDelegate.dropShadow(
-      ['Shape Layer 1', '**'],
-      value: const DropShadow(
-        color: Colors.green,
-        direction: 150,
-        distance: 20,
-        radius: 10,
-      ),
-    ),
-  );
-
-  testGolden(
-    'Solid Color',
-    ValueDelegate.color(['Cyan Solid 1', '**'], value: Colors.yellow),
-    filePath: 'Tests/SolidLayerTransform.json',
-  );
-
-  for (var progress in [0.0, 0.5, 1.0]) {
-    testGolden(
-      'Opacity interpolation ($progress)',
-      ValueDelegate.transformOpacity(
-        ['Shape Layer 1', 'Rectangle'],
-        callback: (frameInfo) => lerpDouble(
-          10,
-          100,
-          Curves.linear.transform(frameInfo.overallProgress),
-        )!.round(),
-      ),
-      progress: progress,
-    );
-  }
-
-  testWidgets('warningShimmer', (tester) async {
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var composition = await LottieComposition.fromBytes(
-      File('test/data/warningShimmer.json').readAsBytesSync(),
-    );
-
-    var delegates = <String, List<ValueDelegate>>{
-      '1': [
-        for (var i in ['1', '2', '5'])
-          ValueDelegate.color(['Layer $i Outlines', '**'], value: Colors.red),
-        for (var i in ['3', '4'])
-          ValueDelegate.color([
-            'Layer $i Outlines',
-            '**',
-          ], value: Colors.greenAccent),
-      ],
-      '2': [
-        for (var i in ['1', '2', '5'])
-          ValueDelegate.color([
-            'Layer $i Outlines',
-            'Group 1',
-            '*',
-          ], value: Colors.red),
-        for (var i in ['3', '4'])
-          ValueDelegate.color([
-            'Layer $i Outlines',
-            'Group 1',
-            '*',
-          ], value: Colors.greenAccent),
-      ],
-      '3': [
-        for (var i in ['1', '2', '5'])
-          ValueDelegate.color([
-            'Layer $i Outlines',
-            'Group 1',
-            'Fill 1',
-          ], value: Colors.red),
-        for (var i in ['3', '4'])
-          ValueDelegate.color([
-            'Layer $i Outlines',
-            'Group 1',
-            'Fill 1',
-          ], value: Colors.greenAccent),
-      ],
-    };
-
-    for (var variant in delegates.entries) {
-      await tester.pumpWidget(
-        FilmStrip(
-          composition,
-          size: size,
-          delegates: LottieDelegates(values: variant.value),
-        ),
-      );
-
-      await expectLater(
-        find.byType(FilmStrip),
-        matchesGoldenFile('goldens/warningShimmer_${variant.key}.png'),
-      );
-    }
-  });
-}
diff --git a/lottie/test/dynamic_test.dart b/lottie/test/dynamic_test.dart
deleted file mode 100644
index 5fed2fe..0000000
--- a/lottie/test/dynamic_test.dart
+++ /dev/null
@@ -1,40 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'utils.dart';
-
-void main() {
-  var root = 'example/assets';
-
-  testWidgets('Mirror animation', (tester) async {
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var composition = (await tester.runAsync(
-      () => FileLottie(File('$root/Tests/MatteTimeStretchScan.json')).load(),
-    ))!;
-    await tester.pumpWidget(
-      FilmStrip(
-        composition,
-        size: size,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.transformAnchorPoint(
-              [],
-              value: Offset(composition.bounds.width.toDouble(), 0),
-            ),
-            ValueDelegate.transformScale([], value: const Offset(-1, 1)),
-          ],
-        ),
-      ),
-    );
-
-    await expectLater(
-      find.byType(FilmStrip),
-      matchesGoldenFile('goldens/mirror.png'),
-    );
-  });
-}
diff --git a/lottie/test/dynamic_text_properties_test.dart b/lottie/test/dynamic_text_properties_test.dart
deleted file mode 100644
index db4982f..0000000
--- a/lottie/test/dynamic_text_properties_test.dart
+++ /dev/null
@@ -1,61 +0,0 @@
-import 'dart:io';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-
-void main() {
-  late LottieComposition composition;
-
-  setUpAll(() async {
-    composition = await LottieComposition.fromBytes(
-      File('example/assets/Tests/Text.json').readAsBytesSync(),
-    );
-  });
-
-  void testGolden(String description, ValueDelegate delegate) async {
-    var screenshotName = description
-        .toLowerCase()
-        .replaceAll(RegExp('[^a-z0-9 ]'), '')
-        .replaceAll(' ', '_');
-
-    testWidgets(description, (tester) async {
-      await tester.pumpWidget(
-        Lottie(
-          composition: composition,
-          delegates: LottieDelegates(values: [delegate]),
-          addRepaintBoundary: false,
-        ),
-      );
-      await tester.pump();
-      await expectLater(
-        find.byType(Lottie),
-        matchesGoldenFile('goldens/dynamic_text/$screenshotName.png'),
-      );
-    });
-  }
-
-  testGolden(
-    'Text Fill (Blue -> Green)',
-    ValueDelegate.color(['Text'], callback: (_) => Colors.green),
-  );
-
-  testGolden(
-    'Text Stroke (Red -> Yellow)',
-    ValueDelegate.strokeColor(['Text'], callback: (_) => Colors.yellow),
-  );
-
-  testGolden(
-    'Text Stroke Width',
-    ValueDelegate.strokeWidth(['Text'], callback: (_) => 200),
-  );
-
-  testGolden(
-    'Text Tracking 1',
-    ValueDelegate.textTracking(['Text'], callback: (_) => 20),
-  );
-
-  testGolden(
-    'Text Tracking 2',
-    ValueDelegate.textSize(['Text'], callback: (_) => 60),
-  );
-}
diff --git a/lottie/test/dynamic_text_test.dart b/lottie/test/dynamic_text_test.dart
deleted file mode 100644
index 78df34a..0000000
--- a/lottie/test/dynamic_text_test.dart
+++ /dev/null
@@ -1,103 +0,0 @@
-import 'dart:io';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'utils.dart';
-
-void main() {
-  late LottieComposition composition;
-
-  setUpAll(() async {
-    composition = await LottieComposition.fromBytes(
-      File('example/assets/Tests/DynamicText.json').readAsBytesSync(),
-    );
-  });
-
-  void testGolden(String description, LottieDelegates delegates) async {
-    var screenshotName = description
-        .toLowerCase()
-        .replaceAll(RegExp('[^a-z0-9 ]'), '')
-        .replaceAll(' ', '_');
-
-    var size = const Size(500, 400);
-    testWidgets(description, (tester) async {
-      await tester.pumpWidget(
-        MaterialApp(
-          home: FilmStrip(composition, delegates: delegates, size: size),
-        ),
-      );
-      await tester.pump();
-      await expectLater(
-        find.byType(FilmStrip),
-        matchesGoldenFile('goldens/dynamic_text/$screenshotName.png'),
-      );
-    });
-  }
-
-  testGolden(
-    'Dynamic text delegate',
-    LottieDelegates(
-      text: (input) => '🔥c️🔥👮🏿‍🔥',
-      textStyle: (font) => const TextStyle(
-        fontFamily: 'Roboto',
-        fontFamilyFallback: ['Noto Emoji'],
-      ),
-      values: const [],
-    ),
-  );
-
-  testGolden(
-    'Dynamic Text ValueDelegate',
-    LottieDelegates(
-      values: [
-        ValueDelegate.text(['NAME'], value: 'Text with ValueDelegate'),
-      ],
-    ),
-  );
-
-  testGolden(
-    'Dynamic Text ValueDelegate overallProgress',
-    LottieDelegates(
-      values: [
-        ValueDelegate.text([
-          'NAME',
-        ], callback: (frame) => '${frame.overallProgress}'),
-      ],
-    ),
-  );
-
-  testGolden(
-    'Dynamic Text ValueDelegate startValue',
-    LottieDelegates(
-      values: [
-        ValueDelegate.text([
-          'NAME',
-        ], callback: (frame) => '${frame.startValue}!!'),
-      ],
-    ),
-  );
-
-  testGolden(
-    'Dynamic Text ValueDelegate endValue',
-    LottieDelegates(
-      values: [
-        ValueDelegate.text([
-          'NAME',
-        ], callback: (frame) => '${frame.endValue}!!'),
-      ],
-    ),
-  );
-
-  testGolden(
-    'Dynamic Text Emoji',
-    LottieDelegates(
-      textStyle: (font) => const TextStyle(
-        fontFamily: 'Roboto',
-        fontFamilyFallback: ['Noto Emoji'],
-      ),
-      values: [
-        ValueDelegate.text(['NAME'], value: '🔥💪💯'),
-      ],
-    ),
-  );
-}
diff --git a/lottie/test/fireworks_test.dart b/lottie/test/fireworks_test.dart
deleted file mode 100644
index e744859..0000000
--- a/lottie/test/fireworks_test.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'package:path/path.dart' as p;
-import 'utils.dart';
-
-void main() {
-  testWidgets('Animations with stroke', (tester) async {
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var composition = await LottieComposition.fromBytes(
-      File('example/assets/17297-fireworks.json').readAsBytesSync(),
-    );
-
-    await tester.pumpWidget(FilmStrip(composition, size: size));
-
-    await expectLater(
-      find.byType(FilmStrip),
-      matchesGoldenFile(p.join('goldens/fireworks.png')),
-    );
-  });
-}
diff --git a/lottie/test/flutter_test_config.dart b/lottie/test/flutter_test_config.dart
deleted file mode 100644
index 991fd95..0000000
--- a/lottie/test/flutter_test_config.dart
+++ /dev/null
@@ -1,22 +0,0 @@
-import 'dart:async';
-import 'dart:io';
-import 'package:flutter/services.dart';
-import 'package:path/path.dart' as path;
-
-Future<void> testExecutable(FutureOr<void> Function() testMain) async {
-  await loadFonts();
-  return testMain();
-}
-
-Future<void> loadFonts() async {
-  for (var file in Directory(
-    'example/assets/fonts',
-  ).listSync().whereType<File>().where((f) => f.path.endsWith('.ttf'))) {
-    var fontLoader = FontLoader(
-      path.basenameWithoutExtension(file.path).replaceAll('-', ' '),
-    );
-    var future = file.readAsBytes().then((value) => value.buffer.asByteData());
-    fontLoader.addFont(future);
-    await fontLoader.load();
-  }
-}
diff --git a/lottie/test/frame_rate_test.dart b/lottie/test/frame_rate_test.dart
deleted file mode 100644
index f353155..0000000
--- a/lottie/test/frame_rate_test.dart
+++ /dev/null
@@ -1,17 +0,0 @@
-import 'dart:io';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-
-void main() {
-  test('Frame rate round', () async {
-    var composition = await LottieComposition.fromBytes(
-      File('example/assets/LottieLogo1.json').readAsBytesSync(),
-    );
-    expect(composition.roundProgress(0, frameRate: FrameRate.composition), 0);
-    expect(
-      composition.roundProgress(0.0001, frameRate: FrameRate.composition),
-      0,
-    );
-    expect(composition.roundProgress(0.0001, frameRate: FrameRate.max), 0.0001);
-  });
-}
diff --git a/lottie/test/gamma_evaluator_test.dart b/lottie/test/gamma_evaluator_test.dart
deleted file mode 100644
index fd9d0e6..0000000
--- a/lottie/test/gamma_evaluator_test.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-import 'dart:ui';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/src/utils/gamma_evaluator.dart';
-
-void main() {
-  test('Evaluate for same color values', () {
-    for (var color = 0x000000; color <= 0xffffff; color++) {
-      var colorToTest = Color(0xff000000 | color);
-      var actual = GammaEvaluator.evaluate(0.3, colorToTest, colorToTest);
-      expect(actual, colorToTest);
-    }
-  });
-}
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diff --git a/lottie/test/golden/HamburgerArrow_1_0.png b/lottie/test/golden/HamburgerArrow_1_0.png
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diff --git a/lottie/test/golden/Logo/LogoSmall_0_5.png b/lottie/test/golden/Logo/LogoSmall_0_5.png
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diff --git a/lottie/test/golden/Mobilo/A_0_5.png b/lottie/test/golden/Mobilo/A_0_5.png
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diff --git a/lottie/test/golden/Mobilo/B_0_5.png b/lottie/test/golden/Mobilo/B_0_5.png
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diff --git a/lottie/test/golden/lottiefiles/atm_link_1_0.png b/lottie/test/golden/lottiefiles/atm_link_1_0.png
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diff --git a/lottie/test/golden_test.dart b/lottie/test/golden_test.dart
deleted file mode 100644
index ad50680..0000000
--- a/lottie/test/golden_test.dart
+++ /dev/null
@@ -1,37 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'package:path/path.dart' as p;
-import 'utils.dart';
-
-void main() {
-  var root = 'example/assets';
-  for (var asset
-      in Directory(root)
-          .listSync(recursive: true)
-          .whereType<File>()
-          .where(
-            (f) => const ['.json', '.zip'].contains(p.extension(f.path)),
-          )) {
-    testWidgets('Goldens ${asset.path}', (tester) async {
-      var size = const Size(500, 400);
-      tester.view.physicalSize = size;
-      tester.view.devicePixelRatio = 1.0;
-      var composition = (await tester.runAsync(
-        () => FileLottie(asset).load(),
-      ))!;
-
-      await tester.pumpWidget(FilmStrip(composition, size: size));
-
-      var folder = p.relative(asset.path, from: root);
-      var fileName = '${p.basenameWithoutExtension(asset.path)}.png'
-          .toLowerCase();
-      await expectLater(
-        find.byType(FilmStrip),
-        matchesGoldenFile(p.join('goldens/all', p.dirname(folder), fileName)),
-      );
-    });
-  }
-}
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diff --git a/lottie/test/goldens/dynamic_text.png b/lottie/test/goldens/dynamic_text.png
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diff --git a/lottie/test/goldens/gradients/blub_red_callback.png b/lottie/test/goldens/gradients/blub_red_callback.png
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diff --git a/lottie/test/goldens/gradients/blub_red_value.png b/lottie/test/goldens/gradients/blub_red_value.png
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diff --git a/lottie/test/goldens/gradients/radial_gradient_fill.png b/lottie/test/goldens/gradients/radial_gradient_fill.png
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diff --git a/lottie/test/goldens/mirror.png b/lottie/test/goldens/mirror.png
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diff --git a/lottie/test/goldens/opacity_layers.png b/lottie/test/goldens/opacity_layers.png
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diff --git a/lottie/test/goldens/warningShimmer_1.png b/lottie/test/goldens/warningShimmer_1.png
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diff --git a/lottie/test/goldens/warningShimmer_2.png b/lottie/test/goldens/warningShimmer_2.png
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diff --git a/lottie/test/goldens/warningShimmer_3.png b/lottie/test/goldens/warningShimmer_3.png
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diff --git a/lottie/test/gradient_test.dart b/lottie/test/gradient_test.dart
deleted file mode 100644
index 5d2beaf..0000000
--- a/lottie/test/gradient_test.dart
+++ /dev/null
@@ -1,166 +0,0 @@
-import 'dart:io';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-
-void main() {
-  void testGradient(String name, ValueDelegate valueDelegate) {
-    testWidgets(name, (tester) async {
-      var composition = await LottieComposition.fromBytes(
-        File('example/assets/Tests/DynamicGradient.json').readAsBytesSync(),
-      );
-
-      var animation = AnimationController(
-        vsync: tester,
-        duration: composition.duration,
-      );
-
-      await tester.pumpWidget(
-        Lottie(
-          composition: composition,
-          controller: animation,
-          delegates: LottieDelegates(values: [valueDelegate]),
-        ),
-      );
-
-      var screenshotName = name
-          .toLowerCase()
-          .replaceAll(RegExp('[^a-z0-9 ]'), '')
-          .replaceAll(' ', '_');
-
-      await expectLater(
-        find.byType(Lottie),
-        matchesGoldenFile('goldens/gradients/$screenshotName.png'),
-      );
-    });
-  }
-
-  testGradient(
-    'Linear Gradient Fill',
-    ValueDelegate.gradientColor(
-      ['Linear', 'Rectangle', 'Gradient Fill'],
-      value: const [Color(0xFFFFFF00), Color(0xFF00FF00)],
-    ),
-  );
-
-  testGradient(
-    'Radial Gradient Fill',
-    ValueDelegate.gradientColor(
-      ['Radial', 'Rectangle', 'Gradient Fill'],
-      value: const [Color(0xFFFFFF00), Color(0xFF00FF00)],
-    ),
-  );
-
-  testGradient(
-    'Linear Gradient Stroke',
-    ValueDelegate.gradientColor(
-      ['Linear', 'Rectangle', 'Gradient Stroke'],
-      value: const [Color(0xFFFFFF00), Color(0xFF00FF00)],
-    ),
-  );
-
-  testGradient(
-    'Radial Gradient Stroke',
-    ValueDelegate.gradientColor(
-      ['Radial', 'Rectangle', 'Gradient Stroke'],
-      value: const [Color(0xFFFFFF00), Color(0xFF00FF00)],
-    ),
-  );
-
-  testGradient(
-    'Opacity Linear Gradient Fill',
-    ValueDelegate.opacity(['Linear', 'Rectangle', 'Gradient Fill'], value: 50),
-  );
-
-  testWidgets('Can change gradient dynamically with value', (tester) async {
-    var composition = await LottieComposition.fromBytes(
-      File('example/assets/blub.json').readAsBytesSync(),
-    );
-
-    var animation = AnimationController(
-      vsync: tester,
-      duration: composition.duration,
-    );
-
-    await tester.pumpWidget(
-      Lottie(
-        composition: composition,
-        controller: animation,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.gradientColor(
-              const ['灯光', '灯光', 'Gradient Fill 2'],
-              value: [Colors.yellow, Colors.white],
-            ),
-          ],
-        ),
-      ),
-    );
-    await tester.pumpWidget(
-      Lottie(
-        composition: composition,
-        controller: animation,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.gradientColor(
-              const ['灯光', '灯光', 'Gradient Fill 2'],
-              value: [Colors.red, Colors.white],
-            ),
-          ],
-        ),
-      ),
-    );
-
-    await expectLater(
-      find.byType(Lottie),
-      matchesGoldenFile('goldens/gradients/blub_red_value.png'),
-    );
-  });
-
-  testWidgets('Can change gradient dynamically with callback', (tester) async {
-    var composition = await LottieComposition.fromBytes(
-      File('example/assets/blub.json').readAsBytesSync(),
-    );
-
-    var animation = AnimationController(
-      vsync: tester,
-      duration: composition.duration,
-    );
-
-    await tester.pumpWidget(
-      Lottie(
-        composition: composition,
-        controller: animation,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.gradientColor(const [
-              '灯光',
-              '灯光',
-              'Gradient Fill 2',
-            ], callback: (_) => [Colors.yellow, Colors.white]),
-          ],
-        ),
-      ),
-    );
-    await tester.pumpWidget(
-      Lottie(
-        composition: composition,
-        controller: animation,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.gradientColor(const [
-              '灯光',
-              '灯光',
-              'Gradient Fill 2',
-            ], callback: (_) => [Colors.red, Colors.white]),
-          ],
-        ),
-      ),
-    );
-
-    await expectLater(
-      find.byType(Lottie),
-      matchesGoldenFile('goldens/gradients/blub_red_callback.png'),
-    );
-  });
-}
diff --git a/lottie/test/lottie_test.dart b/lottie/test/lottie_test.dart
deleted file mode 100644
index 5dad105..0000000
--- a/lottie/test/lottie_test.dart
+++ /dev/null
@@ -1,558 +0,0 @@
-import 'dart:async';
-import 'dart:io';
-import 'package:flutter/services.dart';
-import 'package:flutter/widgets.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-
-void main() {
-  tearDown(() {
-    Lottie.cache.clear();
-  });
-
-  testWidgets('Should settle if no animation', (tester) async {
-    var data = File('example/assets/HamburgerArrow.json').readAsBytesSync();
-    var composition = await LottieComposition.fromBytes(data);
-
-    await tester.pumpWidget(Lottie(composition: composition, animate: false));
-
-    await tester.pumpAndSettle();
-  });
-
-  testWidgets('onLoaded called with the correct composition', (tester) async {
-    late LottieComposition composition;
-
-    var file = SynchronousFile(File('example/assets/HamburgerArrow.json'));
-
-    await tester.pumpWidget(
-      LottieBuilder.file(
-        file,
-        onLoaded: (c) {
-          composition = c;
-        },
-      ),
-    );
-
-    await tester.pump();
-
-    expect(composition.endFrame, 179.99);
-  });
-
-  testWidgets('onLoaded called when remplacing the widget animation', (
-    tester,
-  ) async {
-    var hamburgerData = Future.value(
-      bytesForFile('example/assets/HamburgerArrow.json'),
-    );
-    var androidData = Future.value(
-      bytesForFile('example/assets/AndroidWave.json'),
-    );
-
-    var mockAsset = FakeAssetBundle({
-      'hamburger.json': hamburgerData,
-      'android.json': androidData,
-    });
-
-    var animation = AnimationController(vsync: tester);
-
-    LottieComposition? composition;
-    await tester.pumpWidget(
-      Lottie.asset(
-        'hamburger.json',
-        controller: animation,
-        bundle: mockAsset,
-        onLoaded: (c) {
-          composition = c;
-        },
-      ),
-    );
-    await tester.pump();
-    expect(tester.takeException(), isNull);
-    //expect(find.byType(Lottie), findsOneWidget);
-    expect(composition, isNotNull);
-    expect(composition!.duration, const Duration(seconds: 6));
-
-    composition = null;
-
-    await tester.pumpWidget(
-      Lottie.asset(
-        'android.json',
-        controller: animation,
-        bundle: mockAsset,
-        onLoaded: (c) {
-          composition = c;
-        },
-      ),
-    );
-
-    await tester.pump();
-    expect(composition, isNotNull);
-    expect(composition!.duration, const Duration(seconds: 2, milliseconds: 50));
-  });
-
-  testWidgets('onLoaded data race 1', (tester) async {
-    var hamburgerCompleter = Completer<ByteData>();
-    var androidCompleter = Completer<ByteData>();
-
-    var hamburgerData = bytesForFile('example/assets/HamburgerArrow.json');
-    var androidData = bytesForFile('example/assets/AndroidWave.json');
-
-    var mockAsset = FakeAssetBundle({
-      'hamburger.json': hamburgerCompleter.future,
-      'android.json': androidCompleter.future,
-    });
-
-    var animation = AnimationController(vsync: tester);
-
-    var onLoadedCount = 0;
-
-    LottieComposition? composition;
-    await tester.pumpWidget(
-      Lottie.asset(
-        'hamburger.json',
-        controller: animation,
-        bundle: mockAsset,
-        onLoaded: (c) {
-          composition = c;
-          ++onLoadedCount;
-        },
-      ),
-    );
-    await tester.pump();
-    expect(
-      find.byWidgetPredicate((w) => w is RawLottie && w.composition == null),
-      findsOneWidget,
-    );
-    expect(composition, isNull);
-    expect(onLoadedCount, 0);
-
-    await tester.pumpWidget(
-      Lottie.asset(
-        'android.json',
-        controller: animation,
-        bundle: mockAsset,
-        onLoaded: (c) {
-          composition = c;
-          ++onLoadedCount;
-        },
-      ),
-    );
-
-    await tester.pump();
-    expect(composition, isNull);
-    expect(onLoadedCount, 0);
-
-    hamburgerCompleter.complete(hamburgerData);
-
-    await tester.pump();
-    expect(composition, isNull);
-    expect(onLoadedCount, 0);
-
-    androidCompleter.complete(androidData);
-
-    await tester.pump();
-    expect(composition!.duration, const Duration(seconds: 2, milliseconds: 50));
-    expect(onLoadedCount, 1);
-  });
-
-  testWidgets('onLoaded data race 2', (tester) async {
-    var hamburgerCompleter = Completer<ByteData>();
-    var androidCompleter = Completer<ByteData>();
-
-    var hamburgerData = bytesForFile('example/assets/HamburgerArrow.json');
-    var androidData = bytesForFile('example/assets/AndroidWave.json');
-
-    var mockAsset = FakeAssetBundle({
-      'hamburger.json': hamburgerCompleter.future,
-      'android.json': androidCompleter.future,
-    });
-
-    var animation = AnimationController(vsync: tester);
-
-    var onLoadedCount = 0;
-
-    LottieComposition? composition;
-    await tester.pumpWidget(
-      Lottie.asset(
-        'hamburger.json',
-        controller: animation,
-        bundle: mockAsset,
-        onLoaded: (c) {
-          composition = c;
-          ++onLoadedCount;
-        },
-      ),
-    );
-    await tester.pump();
-    expect(
-      find.byWidgetPredicate((w) => w is RawLottie && w.composition == null),
-      findsOneWidget,
-    );
-    expect(composition, isNull);
-    expect(onLoadedCount, 0);
-
-    await tester.pumpWidget(
-      Lottie.asset(
-        'android.json',
-        controller: animation,
-        bundle: mockAsset,
-        onLoaded: (c) {
-          composition = c;
-          ++onLoadedCount;
-        },
-      ),
-    );
-
-    await tester.pump();
-    expect(composition, isNull);
-    expect(onLoadedCount, 0);
-
-    androidCompleter.complete(androidData);
-
-    await tester.pump();
-    expect(composition!.duration, const Duration(seconds: 2, milliseconds: 50));
-    expect(onLoadedCount, 1);
-
-    hamburgerCompleter.complete(hamburgerData);
-
-    await tester.pump();
-    expect(composition!.duration, const Duration(seconds: 2, milliseconds: 50));
-    expect(onLoadedCount, 1);
-  });
-
-  testWidgets('Should auto animate', (tester) async {
-    var composition = await LottieComposition.fromBytes(
-      File('example/assets/HamburgerArrow.json').readAsBytesSync(),
-    );
-
-    await tester.pumpWidget(Lottie(composition: composition));
-
-    await tester.pump();
-
-    var lottie = tester.firstWidget<AnimatedBuilder>(
-      find.byType(AnimatedBuilder),
-    );
-    expect(lottie.listenable, isNotNull);
-    expect(
-      (lottie.listenable as AnimationController).duration,
-      const Duration(seconds: 6),
-    );
-    expect((lottie.listenable as AnimationController).isAnimating, true);
-
-    await tester.pumpWidget(Lottie(composition: composition, animate: false));
-
-    lottie = tester.firstWidget<AnimatedBuilder>(find.byType(AnimatedBuilder));
-    expect(lottie.listenable, isNotNull);
-    expect(
-      (lottie.listenable as AnimationController).duration,
-      const Duration(seconds: 6),
-    );
-    expect((lottie.listenable as AnimationController).isAnimating, false);
-
-    await tester.pumpWidget(Lottie(composition: composition));
-
-    lottie = tester.firstWidget<AnimatedBuilder>(find.byType(AnimatedBuilder));
-    expect(lottie.listenable, isNotNull);
-    expect(
-      (lottie.listenable as AnimationController).duration,
-      const Duration(seconds: 6),
-    );
-
-    var animationController = AnimationController(
-      vsync: tester,
-      duration: const Duration(seconds: 2),
-    );
-
-    await tester.pumpWidget(
-      Lottie(composition: composition, controller: animationController.view),
-    );
-
-    lottie = tester.firstWidget<AnimatedBuilder>(find.byType(AnimatedBuilder));
-    expect(lottie.listenable, isNotNull);
-    expect(
-      (lottie.listenable as AnimationController).duration,
-      const Duration(seconds: 2),
-    );
-
-    await tester.pumpWidget(
-      Lottie(
-        composition: composition,
-        controller: animationController.view,
-        animate: false,
-      ),
-    );
-
-    lottie = tester.firstWidget<AnimatedBuilder>(find.byType(AnimatedBuilder));
-    expect(lottie.listenable, isNotNull);
-    expect(
-      (lottie.listenable as AnimationController).duration,
-      const Duration(seconds: 2),
-    );
-
-    await tester.pumpWidget(Lottie(composition: composition, animate: false));
-
-    lottie = tester.firstWidget<AnimatedBuilder>(find.byType(AnimatedBuilder));
-    expect(lottie.listenable, isNotNull);
-    expect(
-      (lottie.listenable as AnimationController).duration,
-      const Duration(seconds: 6),
-    );
-    expect((lottie.listenable as AnimationController).isAnimating, false);
-  });
-
-  testWidgets('errorBuilder called when error', (tester) async {
-    var hamburgerData = Future.value(
-      bytesForFile('example/assets/HamburgerArrow.json'),
-    );
-    var mockAsset = FakeAssetBundle({'hamburger.json': hamburgerData});
-
-    var errorKey = UniqueKey();
-    var loadedCall = 0;
-    await tester.pumpWidget(
-      LottieBuilder.asset(
-        'error.json',
-        bundle: mockAsset,
-        errorBuilder: (c, e, stackTrace) => Container(key: errorKey),
-        onLoaded: (c) {
-          ++loadedCall;
-        },
-      ),
-    );
-
-    await tester.pump();
-    expect(find.byKey(errorKey), findsOneWidget);
-    expect(loadedCall, 0);
-
-    await tester.pumpWidget(
-      LottieBuilder.asset(
-        'hamburger.json',
-        bundle: mockAsset,
-        errorBuilder: (c, e, stackTrace) => Container(key: errorKey),
-        onLoaded: (c) {
-          ++loadedCall;
-        },
-      ),
-    );
-    await tester.pump();
-
-    expect(find.byType(Lottie), findsOneWidget);
-    expect(find.byKey(errorKey), findsNothing);
-    expect(loadedCall, 1);
-  });
-
-  testWidgets('Cache should be synchronous', (tester) async {
-    var hamburgerData = Future.value(
-      bytesForFile('example/assets/HamburgerArrow.json'),
-    );
-    var mockAsset = FakeAssetBundle({'hamburger.json': hamburgerData});
-
-    var loadedCall = 0;
-    var lottieWidget = LottieBuilder.asset(
-      'hamburger.json',
-      bundle: mockAsset,
-      onLoaded: (c) {
-        ++loadedCall;
-      },
-    );
-
-    await tester.pumpWidget(lottieWidget);
-    expect(tester.widget<Lottie>(find.byType(Lottie)).composition, isNull);
-    await tester.pump();
-    expect(tester.widget<Lottie>(find.byType(Lottie)).composition, isNotNull);
-
-    await tester.pumpWidget(Column(children: [lottieWidget, lottieWidget]));
-    expect(
-      tester.widget<Lottie>(find.byType(Lottie).at(0)).composition,
-      isNotNull,
-    );
-    expect(
-      tester.widget<Lottie>(find.byType(Lottie).at(1)).composition,
-      isNotNull,
-    );
-    expect(loadedCall, 3);
-  });
-
-  testWidgets('Cache can be cleared', (tester) async {
-    var hamburgerData = Future.value(
-      bytesForFile('example/assets/HamburgerArrow.json'),
-    );
-    var mockAsset = FakeAssetBundle({'hamburger.json': hamburgerData});
-
-    var loadedCall = 0;
-    var lottieWidget = LottieBuilder.asset(
-      'hamburger.json',
-      bundle: mockAsset,
-      onLoaded: (c) {
-        ++loadedCall;
-      },
-    );
-
-    await tester.pumpWidget(lottieWidget);
-    expect(tester.widget<Lottie>(find.byType(Lottie)).composition, isNull);
-    await tester.pump();
-    expect(tester.widget<Lottie>(find.byType(Lottie)).composition, isNotNull);
-
-    Lottie.cache.clear();
-
-    await tester.pumpWidget(Center(child: lottieWidget));
-    expect(tester.widget<Lottie>(find.byType(Lottie)).composition, isNull);
-    await tester.pump();
-    expect(tester.widget<Lottie>(find.byType(Lottie)).composition, isNotNull);
-    expect(loadedCall, 2);
-  });
-
-  testWidgets('onLoaded is ', (tester) async {
-    var hamburgerData = Future.value(
-      bytesForFile('example/assets/HamburgerArrow.json'),
-    );
-    var mockAsset = FakeAssetBundle({'hamburger.json': hamburgerData});
-    var provider = AssetLottie('hamburger.json', bundle: mockAsset);
-
-    await tester.pumpWidget(
-      KeyedSubtree(
-        key: UniqueKey(),
-        child: _LottieWithSetStateInOnLoaded(provider),
-      ),
-    );
-    var state1 = tester.state<__LottieWithSetStateInOnLoadedState>(
-      find.byType(_LottieWithSetStateInOnLoaded),
-    );
-    expect(state1.loadedCount, 1);
-    await tester.pump();
-    expect(state1.loadedCount, 1);
-
-    await tester.pumpWidget(
-      KeyedSubtree(
-        key: UniqueKey(),
-        child: _LottieWithSetStateInOnLoaded(provider),
-      ),
-    );
-    var state2 = tester.state<__LottieWithSetStateInOnLoadedState>(
-      find.byType(_LottieWithSetStateInOnLoaded),
-    );
-    expect(state2.loadedCount, 1);
-    await tester.pump();
-    expect(state2.loadedCount, 1);
-    expect(state1, isNot(state2));
-  });
-
-  testWidgets(
-    'if composition is static should create Lottie with [animate] false by default',
-    (tester) async {
-      await tester.pumpWidget(
-        LottieBuilder.memory(
-          File('test/data/static_lottie.json').readAsBytesSync(),
-        ),
-      );
-      expect(tester.hasRunningAnimations, false);
-    },
-  );
-
-  testWidgets(
-    'if composition is static and [animate] is true, should have animations',
-    (tester) async {
-      await tester.pumpWidget(
-        LottieBuilder.memory(
-          File('test/data/static_lottie.json').readAsBytesSync(),
-          animate: true,
-        ),
-      );
-      expect(tester.hasRunningAnimations, true);
-    },
-  );
-
-  testWidgets('AssetLottie uses DefaultAssetBundle', (tester) async {
-    var hamburgerData = Future.value(
-      bytesForFile('example/assets/HamburgerArrow.json'),
-    );
-    var mockAsset = FakeAssetBundle({
-      'hamburger.json': hamburgerData,
-      'other.json': hamburgerData,
-    });
-    await tester.pumpWidget(
-      DefaultAssetBundle(
-        bundle: mockAsset,
-        child: Lottie.asset('hamburger.json'),
-      ),
-    );
-    await tester.pump(const Duration(milliseconds: 100));
-    expect(find.byType(RawLottie), findsOneWidget);
-    expect(
-      find.byWidgetPredicate((w) => w is RawLottie && w.composition != null),
-      findsOneWidget,
-    );
-
-    await tester.pumpWidget(
-      DefaultAssetBundle(bundle: mockAsset, child: Lottie.asset('other.json')),
-    );
-    await tester.pump(const Duration(milliseconds: 100));
-    expect(
-      find.byWidgetPredicate((w) => w is RawLottie && w.composition != null),
-      findsOneWidget,
-    );
-  });
-
-  testWidgets('expected an int', (tester) async {
-    var data = File(
-      'example/assets/Tests/kona_splash_animation.json',
-    ).readAsBytesSync();
-    var composition = await LottieComposition.fromBytes(data);
-
-    await tester.pumpWidget(Lottie(composition: composition, animate: false));
-
-    await tester.pumpAndSettle();
-  });
-}
-
-class SynchronousFile extends Fake implements File {
-  final File _real;
-
-  SynchronousFile(this._real);
-
-  @override
-  String get path => _real.path;
-
-  @override
-  Future<Uint8List> readAsBytes() => Future.value(_real.readAsBytesSync());
-}
-
-ByteData bytesForFile(String path) =>
-    File(path).readAsBytesSync().buffer.asByteData();
-
-class FakeAssetBundle extends Fake implements AssetBundle {
-  final Map<String, Future<ByteData>> data;
-
-  FakeAssetBundle(this.data);
-
-  @override
-  Future<ByteData> load(String key) {
-    return data[key] ?? (Future.error('Asset $key not found'));
-  }
-}
-
-class _LottieWithSetStateInOnLoaded extends StatefulWidget {
-  final LottieProvider lottie;
-
-  const _LottieWithSetStateInOnLoaded(this.lottie);
-
-  @override
-  State<_LottieWithSetStateInOnLoaded> createState() =>
-      __LottieWithSetStateInOnLoadedState();
-}
-
-class __LottieWithSetStateInOnLoadedState
-    extends State<_LottieWithSetStateInOnLoaded> {
-  var loadedCount = 0;
-
-  @override
-  Widget build(BuildContext context) {
-    return LottieBuilder(
-      lottie: widget.lottie,
-      onLoaded: (_) {
-        setState(() {
-          ++loadedCount;
-        });
-      },
-    );
-  }
-}
diff --git a/lottie/test/opacity_layer_test.dart b/lottie/test/opacity_layer_test.dart
deleted file mode 100644
index 345e120..0000000
--- a/lottie/test/opacity_layer_test.dart
+++ /dev/null
@@ -1,41 +0,0 @@
-import 'dart:io';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'package:path/path.dart' as p;
-
-void main() {
-  testWidgets('Opacity layer option', (tester) async {
-    var size = const Size(500, 800);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var bytes = File(
-      'example/assets/Tests/opacity_layers.json',
-    ).readAsBytesSync();
-
-    await tester.pumpWidget(
-      MaterialApp(
-        home: Scaffold(
-          body: Column(
-            crossAxisAlignment: CrossAxisAlignment.stretch,
-            children: [
-              Lottie.memory(
-                bytes,
-                options: LottieOptions(enableApplyingOpacityToLayers: true),
-              ),
-              Lottie.memory(bytes),
-            ],
-          ),
-        ),
-      ),
-    );
-    await tester.pump();
-    await tester.pump(const Duration(milliseconds: 500));
-
-    await expectLater(
-      find.byType(Scaffold),
-      matchesGoldenFile(p.join('goldens/opacity_layers.png')),
-    );
-  });
-}
diff --git a/lottie/test/parser/moshi/buffer_test.dart b/lottie/test/parser/moshi/buffer_test.dart
deleted file mode 100644
index 124c7ad..0000000
--- a/lottie/test/parser/moshi/buffer_test.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-import 'dart:typed_data';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/src/parser/moshi/buffer.dart';
-
-void main() {
-  test('Read', () {
-    var buffer = Buffer(Uint8List.fromList(List.generate(10, (i) => i)));
-
-    buffer.request(4);
-    expect(buffer.readByte(), 0);
-    expect(buffer.readByte(), 1);
-    expect(buffer.getByte(0), 2);
-    expect(buffer.getByte(1), 3);
-  });
-  test('Skip', () {
-    var buffer = Buffer(Uint8List.fromList(List.generate(10, (i) => i)));
-
-    buffer.skip(2);
-    buffer.request(1);
-    expect(buffer.readByte(), 2);
-    expect(buffer.size, 0);
-    buffer.skip(2);
-    expect(buffer.size, 0);
-  });
-}
diff --git a/lottie/test/parser/moshi/json_reader_test.dart b/lottie/test/parser/moshi/json_reader_test.dart
deleted file mode 100644
index 129eb24..0000000
--- a/lottie/test/parser/moshi/json_reader_test.dart
+++ /dev/null
@@ -1,113 +0,0 @@
-import 'dart:convert';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/src/parser/moshi/json_reader.dart';
-
-void main() {
-  test('Read json', () {
-    var reader = JsonReader.fromBytes(utf8.encoder.convert(_simpleJson));
-    var messages = readMessagesArray(reader);
-    expect(messages, hasLength(2));
-    expect(messages.first.user!.name, 'json_newb');
-  });
-}
-
-class Message {
-  final int id;
-  final String? text;
-  final List<double>? geo;
-  final User? user;
-
-  Message(this.id, this.text, this.user, this.geo);
-}
-
-class User {
-  final String? name;
-  final int followerCount;
-
-  User(this.name, this.followerCount);
-}
-
-List<Message> readMessagesArray(JsonReader reader) {
-  var messages = <Message>[];
-  reader.beginArray();
-  while (reader.hasNext()) {
-    messages.add(readMessage(reader));
-  }
-  reader.endArray();
-  return messages;
-}
-
-Message readMessage(JsonReader reader) {
-  var id = -1;
-  String? text;
-  User? user;
-  List<double>? geo;
-  reader.beginObject();
-  while (reader.hasNext()) {
-    var name = reader.nextName();
-    if (name == 'id') {
-      id = reader.nextInt();
-    } else if (name == 'text') {
-      text = reader.nextString();
-    } else if (name == 'geo' && reader.peek() != Token.nullToken) {
-      geo = readDoublesArray(reader);
-    } else if (name == 'user') {
-      user = readUser(reader);
-    } else {
-      reader.skipValue();
-    }
-  }
-  reader.endObject();
-  return Message(id, text, user, geo);
-}
-
-List<double> readDoublesArray(JsonReader reader) {
-  var doubles = <double>[];
-  reader.beginArray();
-  while (reader.hasNext()) {
-    doubles.add(reader.nextDouble());
-  }
-  reader.endArray();
-  return doubles;
-}
-
-User readUser(JsonReader reader) {
-  String? username;
-  var followersCount = -1;
-  reader.beginObject();
-  while (reader.hasNext()) {
-    var name = reader.nextName();
-    if (name == 'name') {
-      username = reader.nextString();
-    } else if (name == 'followers_count') {
-      followersCount = reader.nextInt();
-    } else {
-      reader.skipValue();
-    }
-  }
-  reader.endObject();
-  return User(username, followersCount);
-}
-
-const _simpleJson = '''
-[
-  {
-    "id": 912345678901,
-    "text": "How do I read a JSON stream in Java?",
-    "geo": null,
-    "user": {
-      "name": "json_newb",
-      "followers_count": 41
-     }
-  },
-  {
-    "id": 912345678902,
-    "text": "@json_newb just use JsonReader!",
-    "geo": [50.454722, -104.606667],
-    "user": {
-      "name": "jesse",
-      "followers_count": 2
-    }
-  }
-]
-''';
diff --git a/lottie/test/render_cache_store_test.dart b/lottie/test/render_cache_store_test.dart
deleted file mode 100644
index 2d113b1..0000000
--- a/lottie/test/render_cache_store_test.dart
+++ /dev/null
@@ -1,107 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'package:lottie/src/render_cache/key.dart';
-import 'package:lottie/src/render_cache/store_raster.dart';
-
-void main() {
-  var animationBytes = File(
-    'example/assets/AndroidWave.json',
-  ).readAsBytesSync();
-  var key1 = CacheKey(
-    composition: LottieComposition.parseJsonBytes(animationBytes),
-    size: const Size(10, 10),
-    config: const [FrameRate.composition],
-    delegates: 0,
-  );
-  var key2 = CacheKey(
-    composition: LottieComposition.parseJsonBytes(animationBytes),
-    size: const Size(20, 10),
-    config: const [FrameRate.composition],
-    delegates: 0,
-  );
-
-  test('RenderCache acquire/release logic', () async {
-    var cache = RasterStore(5000000);
-
-    var user = Object();
-
-    var handle = cache.acquire(user);
-    var entry = handle.withKey(key1);
-    entry.imageForProgress(0, (p0) {});
-    expect(cache.imageCount, 1);
-
-    cache.release(user);
-    expect(cache.imageCount, 0);
-  });
-
-  test('RenderCache change key', () async {
-    var cache = RasterStore(500000);
-
-    var user = Object();
-
-    var handle = cache.acquire(user);
-    var entry = handle.withKey(key1);
-    entry.imageForProgress(0, (p0) {});
-    expect(cache.imageCount, 1);
-
-    entry = handle.withKey(key2);
-    expect(cache.imageCount, 0);
-
-    entry.imageForProgress(0, (p0) {});
-    entry.imageForProgress(0, (p0) {});
-    expect(cache.imageCount, 1);
-  });
-
-  test('RenderCache acquire with same key', () async {
-    var cache = RasterStore(5000000);
-
-    var user1 = Object();
-    var user2 = Object();
-
-    var handle1 = cache.acquire(user1);
-    var entry1 = handle1.withKey(key1);
-    entry1.imageForProgress(0, (p0) {});
-    expect(cache.imageCount, 1);
-
-    var handle2 = cache.acquire(user2);
-    var entry2 = handle2.withKey(key1);
-    expect(entry1, entry2);
-
-    cache.release(user2);
-    expect(cache.imageCount, 1);
-
-    entry1.imageForProgress(1, (p0) {});
-    expect(cache.imageCount, 2);
-  });
-
-  test('RenderCache change key and release', () async {
-    var cache = RasterStore(50000000);
-
-    var user1 = Object();
-    var user2 = Object();
-
-    var handle1 = cache.acquire(user1);
-    var entry1 = handle1.withKey(key1);
-    entry1.imageForProgress(0, (p0) {});
-    expect(cache.imageCount, 1);
-
-    var handle2 = cache.acquire(user2);
-    var entry2 = handle2.withKey(key1);
-    expect(entry1, entry2);
-
-    entry2 = handle2.withKey(key2);
-    expect(entry1, isNot(equals(entry2)));
-    expect(cache.imageCount, 1);
-
-    entry2.imageForProgress(0, (p0) {});
-    expect(cache.imageCount, 2);
-
-    cache.release(user2);
-    expect(cache.imageCount, 1);
-
-    cache.release(user1);
-    expect(cache.imageCount, 0);
-  });
-}
diff --git a/lottie/test/render_cache_test.dart b/lottie/test/render_cache_test.dart
deleted file mode 100644
index 73b73de..0000000
--- a/lottie/test/render_cache_test.dart
+++ /dev/null
@@ -1,276 +0,0 @@
-import 'dart:io';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-
-void main() {
-  testWidgets('Golden renderCache', (tester) async {
-    var composition = LottieComposition.parseJsonBytes(
-      File('example/assets/lottiefiles/a_mountain.json').readAsBytesSync(),
-    );
-
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.5,
-        composition: composition,
-        renderCache: RenderCache.raster,
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 1);
-
-    await expectLater(
-      find.byType(RawLottie),
-      matchesGoldenFile('goldens/enable_render_cache.png'),
-    );
-  });
-
-  testWidgets('Enable render cache', (tester) async {
-    var composition = LottieComposition.parseJsonBytes(
-      File('example/assets/lottiefiles/bell.json').readAsBytesSync(),
-    );
-
-    var widget = _boilerplate(
-      ListView(
-        children: [
-          for (var i = 0; i < 2; i++)
-            Lottie(
-              composition: composition,
-              renderCache: RenderCache.raster,
-              height: 100,
-            ),
-        ],
-      ),
-    );
-
-    await tester.pumpWidget(widget);
-    expect(RenderCache.raster.store.imageCount, 1);
-    expect(RenderCache.raster.store.handles.length, 2);
-    expect(RenderCache.raster.store.entries.length, 1);
-    var image =
-        RenderCache.raster.store.entries.values.first.images.values.first;
-    await tester.pumpWidget(widget);
-    expect(RenderCache.raster.store.imageCount, 1);
-    var image2 =
-        RenderCache.raster.store.entries.values.first.images.values.first;
-    expect(image, image2);
-    await tester.pump(const Duration(milliseconds: 100));
-    await tester.pumpWidget(widget);
-    expect(RenderCache.raster.store.imageCount, 2);
-    await tester.pumpWidget(Container());
-    expect(RenderCache.raster.store.imageCount, 0);
-    await tester.pumpWidget(widget);
-    expect(RenderCache.raster.store.imageCount, 1);
-  });
-
-  testWidgets('Enable render cache', (tester) async {
-    var composition = LottieComposition.parseJsonBytes(
-      File('example/assets/lottiefiles/bell.json').readAsBytesSync(),
-    );
-
-    var widget = _boilerplate(
-      ListView(
-        children: [
-          for (var i = 0; i < 2; i++)
-            RawLottie(
-              composition: composition,
-              renderCache: RenderCache.raster,
-              height: 100,
-              progress: 0,
-            ),
-        ],
-      ),
-    );
-
-    await tester.pumpWidget(widget);
-  });
-
-  testWidgets('Cache cleared when a property change', (tester) async {
-    var composition = LottieComposition.parseJsonBytes(
-      File('example/assets/lottiefiles/a_mountain.json').readAsBytesSync(),
-    );
-
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.5,
-        composition: composition,
-        frameRate: const FrameRate(60),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.6,
-        composition: composition,
-        frameRate: const FrameRate(60),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 2);
-
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.7,
-        composition: composition,
-        frameRate: const FrameRate(30),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 1);
-  });
-
-  testWidgets('Cache cleared when a delegate change', (tester) async {
-    var composition = LottieComposition.parseJsonBytes(
-      File('example/assets/lottiefiles/a_mountain.json').readAsBytesSync(),
-    );
-
-    String textCallback(String s) => s;
-    String textCallback2(String s) => s;
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.5,
-        composition: composition,
-        delegates: LottieDelegates(text: textCallback),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.6,
-        composition: composition,
-        delegates: LottieDelegates(text: textCallback),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 2);
-
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.7,
-        composition: composition,
-        delegates: LottieDelegates(text: textCallback2),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 1);
-  });
-
-  testWidgets('Cache cleared when a delegate value change', (tester) async {
-    var composition = LottieComposition.parseJsonBytes(
-      File('example/assets/lottiefiles/a_mountain.json').readAsBytesSync(),
-    );
-
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.5,
-        composition: composition,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.color(['*'], value: Colors.red),
-          ],
-        ),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.6,
-        composition: composition,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.color(['*'], value: Colors.red),
-          ],
-        ),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 2);
-
-    await tester.pumpWidget(
-      RawLottie(
-        progress: 0.7,
-        composition: composition,
-        delegates: LottieDelegates(
-          values: [
-            ValueDelegate.color(['*'], value: Colors.blue),
-          ],
-        ),
-        renderCache: RenderCache.raster,
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 1);
-  });
-
-  testWidgets('2 widgets with same animation share cache', (tester) async {
-    var composition = LottieComposition.parseJsonBytes(
-      File('example/assets/lottiefiles/a_mountain.json').readAsBytesSync(),
-    );
-
-    await tester.pumpWidget(
-      Column(
-        children: [
-          RawLottie(
-            progress: 0.5,
-            composition: composition,
-            renderCache: RenderCache.raster,
-            height: 50,
-          ),
-          RawLottie(
-            progress: 0.5,
-            composition: composition,
-            renderCache: RenderCache.raster,
-            height: 50,
-          ),
-        ],
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 1);
-
-    await tester.pumpWidget(
-      Column(
-        children: [
-          RawLottie(
-            progress: 0.6,
-            composition: composition,
-            renderCache: RenderCache.raster,
-            height: 50,
-          ),
-          RawLottie(
-            progress: 0.5,
-            composition: composition,
-            renderCache: RenderCache.raster,
-            height: 50,
-          ),
-        ],
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 2);
-
-    await tester.pumpWidget(
-      Column(
-        children: [
-          RawLottie(
-            progress: 0.6,
-            composition: composition,
-            renderCache: RenderCache.raster,
-            height: 50,
-          ),
-          RawLottie(
-            progress: 0.6,
-            composition: composition,
-            renderCache: RenderCache.raster,
-            height: 50,
-          ),
-        ],
-      ),
-    );
-    expect(RenderCache.raster.store.imageCount, 2);
-  });
-}
-
-Widget _boilerplate(Widget widget) {
-  return MaterialApp(home: Scaffold(body: widget));
-}
diff --git a/lottie/test/screenshot_test.dart b/lottie/test/screenshot_test.dart
deleted file mode 100644
index 6081536..0000000
--- a/lottie/test/screenshot_test.dart
+++ /dev/null
@@ -1,53 +0,0 @@
-import 'dart:io';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'package:path/path.dart' as p;
-
-void main() {
-  //TODO(xha): download all screenshots from lottie-android as golden screenshots
-  // https://happo.io/api/a/27/p/27/reports/abe43ed3d2f25a3ea3c38b1740011cf84fea5e93-android28
-
-  const animationPath = 'example/assets';
-
-  var animations = <_Screenshot>[
-    _Screenshot('AndroidWave.json'),
-    _Screenshot('HamburgerArrow.json'),
-    _Screenshot('HamburgerArrow.json', progress: 0.5),
-    _Screenshot('HamburgerArrow.json', progress: 1.0),
-    _Screenshot('Mobilo/A.json', progress: 0.5),
-    _Screenshot('Mobilo/B.json', progress: 0.5),
-    _Screenshot('Logo/LogoSmall.json', progress: 0.5),
-    _Screenshot('lottiefiles/atm_link.json', progress: 1.0),
-  ];
-  for (var animation in animations) {
-    testWidgets('Screenshot ${animation.name} at ${animation.progress}', (
-      WidgetTester tester,
-    ) async {
-      var composition = await LottieComposition.fromBytes(
-        File(p.join(animationPath, animation.name)).readAsBytesSync(),
-      );
-
-      var goldenName = animation.goldenName;
-
-      await tester.pumpWidget(
-        RawLottie(composition: composition, progress: animation.progress),
-      );
-      await expectLater(
-        find.byType(RawLottie),
-        matchesGoldenFile(
-          p.join('golden', p.dirname(animation.name), '$goldenName.png'),
-        ),
-      );
-    });
-  }
-}
-
-class _Screenshot {
-  final String name;
-  final double progress;
-
-  _Screenshot(this.name, {this.progress = 0.0});
-
-  String get goldenName =>
-      '${p.basenameWithoutExtension(name)}_${progress.toStringAsFixed(1).replaceAll('.', '_')}';
-}
diff --git a/lottie/test/telegram_sticker_test.dart b/lottie/test/telegram_sticker_test.dart
deleted file mode 100644
index 63674f9..0000000
--- a/lottie/test/telegram_sticker_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-import 'dart:io';
-import 'dart:ui';
-import 'package:flutter/material.dart';
-import 'package:flutter_test/flutter_test.dart';
-import 'package:lottie/lottie.dart';
-import 'package:path/path.dart' as p;
-
-void main() {
-  testWidgets('Telegram sticker', (tester) async {
-    var size = const Size(500, 400);
-    tester.view.physicalSize = size;
-    tester.view.devicePixelRatio = 1.0;
-
-    var provider = FileLottie(
-      File('example/assets/LightningBug_file.tgs'),
-      decoder: LottieComposition.decodeGZip,
-    );
-    await tester.runAsync(() => provider.load());
-
-    await tester.pumpWidget(LottieBuilder(lottie: provider));
-
-    await expectLater(
-      find.byType(Lottie),
-      matchesGoldenFile(p.join('goldens/lightningbug_file.png')),
-    );
-  });
-}
diff --git a/lottie/test/utils.dart b/lottie/test/utils.dart
deleted file mode 100644
index 5e05663..0000000
--- a/lottie/test/utils.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-import 'package:flutter/material.dart';
-import 'package:lottie/lottie.dart';
-
-class FilmStrip extends StatelessWidget {
-  final LottieComposition composition;
-  final LottieDelegates? delegates;
-  final Size size;
-
-  const FilmStrip(
-    this.composition, {
-    super.key,
-    required this.size,
-    this.delegates,
-  });
-
-  @override
-  Widget build(BuildContext context) {
-    return CustomPaint(size: size, painter: _CustomerPainter(this));
-  }
-}
-
-class _CustomerPainter extends CustomPainter {
-  static const _columns = 5;
-  final FilmStrip parent;
-
-  _CustomerPainter(this.parent);
-
-  @override
-  void paint(Canvas canvas, Size size) {
-    var thumbSize = Size(size.width / _columns, size.width / _columns);
-    var drawable = LottieDrawable(parent.composition, frameRate: FrameRate.max);
-    if (parent.delegates != null) {
-      drawable.delegates = parent.delegates;
-    }
-
-    var index = 0;
-    for (var progress = 0.0; progress <= 1; progress += 0.05) {
-      var x = index % _columns;
-      var y = index ~/ _columns;
-
-      var rect =
-          Offset(x * thumbSize.width, y.toDouble() * thumbSize.height) &
-          thumbSize;
-
-      drawable
-        ..setProgress(progress)
-        ..draw(canvas, rect);
-
-      ++index;
-    }
-  }
-
-  @override
-  bool shouldRepaint(CustomPainter oldDelegate) {
-    return true;
-  }
-}
diff --git a/pubspec.yaml b/pubspec.yaml
index 1a9908e..20b10d0 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,5 +1,3 @@
 dependency_overrides:
-  exif:
-    path: ./dependencies/exif
-  sprintf:
-    path: ./dependencies/sprintf
+  lottie:
+    path: ./dependencies/lottie
diff --git a/update.py b/update.py
index 1670a97..34ccd28 100644
--- a/update.py
+++ b/update.py
@@ -47,7 +47,7 @@ def integrate_package(folder_name, data):
     global config_lock
 
     repo_url = data['git']
-    keep_list = ["lib", "test", "LICENSE", "pubspec.yaml", "android", "ios"]
+    keep_list = ["lib", "LICENSE", "pubspec.yaml", "android", "ios"]
     
     if "keep" in data:
         keep_list += [item.rstrip('/') for item in data['keep']]