Regenerated cleaned up code that happily runs through flutter analyze.

lib/src/rive_core/animation/keyframe_draw_order_value.dart

@@ -19,9 +19,4 @@ class KeyFrameDrawOrderValue extends KeyFrameDrawOrderValueBase {
       drawable.drawOrder = value;
     }
   }
-
-  int runtimeValueValue(int editorValue) {
-    assert(false, 'this should never get called');
-    return 0;
-  }
 }

lib/src/rive_core/bounds_delegate.dart

@@ -1,4 +0,0 @@
-// ignore: one_member_abstracts
-abstract class BoundsDelegate {
-  void boundsChanged();
-}

lib/src/rive_core/node.dart

@@ -1,5 +1,4 @@
 import 'package:flutter/foundation.dart';
-import 'package:rive/src/rive_core/bounds_delegate.dart';
 import 'package:rive/src/rive_core/component_dirt.dart';
 import 'package:rive/src/rive_core/container_component.dart';
 import 'package:rive/src/rive_core/math/mat2d.dart';
@@ -11,7 +10,6 @@ export 'package:rive/src/generated/node_base.dart';
 class Node extends NodeBase {
   final Mat2D transform = Mat2D();
   final Mat2D worldTransform = Mat2D();
-  BoundsDelegate _delegate;
   double _renderOpacity = 0;
   double get renderOpacity => _renderOpacity;
   @override
@@ -60,16 +58,6 @@ class Node extends NodeBase {
     } else {
       Mat2D.copy(worldTransform, transform);
     }
-    _delegate?.boundsChanged();
-  }
-
-  @override
-  void userDataChanged(dynamic from, dynamic to) {
-    if (to is BoundsDelegate) {
-      _delegate = to;
-    } else {
-      _delegate = null;
-    }
   }
 
   void calculateWorldTransform() {

lib/src/rive_core/shapes/cubic_asymmetric_vertex.dart

@@ -16,6 +16,11 @@ class CubicAsymmetricVertex extends CubicAsymmetricVertexBase {
             cos(rotation) * outDistance, sin(rotation) * outDistance));
   }
 
+  @override
+  set outPoint(Vec2D value) {
+    _outPoint = Vec2D.clone(value);
+  }
+
   @override
   Vec2D get inPoint {
     return _inPoint ??= Vec2D.add(
@@ -25,6 +30,11 @@ class CubicAsymmetricVertex extends CubicAsymmetricVertexBase {
             cos(rotation) * -inDistance, sin(rotation) * -inDistance));
   }
 
+  @override
+  set inPoint(Vec2D value) {
+    _inPoint = Vec2D.clone(value);
+  }
+
   @override
   String toString() {
     return 'in ${inPoint[0]}, ${inPoint[1]} | ${translation.toString()} '

lib/src/rive_core/shapes/cubic_detached_vertex.dart

@@ -28,6 +28,7 @@ class CubicDetachedVertex extends CubicDetachedVertexBase {
       translation,
       Vec2D.fromValues(
           cos(outRotation) * outDistance, sin(outRotation) * outDistance));
+  @override
   set outPoint(Vec2D value) {
     _outPoint = Vec2D.clone(value);
   }
@@ -38,6 +39,7 @@ class CubicDetachedVertex extends CubicDetachedVertexBase {
       translation,
       Vec2D.fromValues(
           cos(inRotation) * inDistance, sin(inRotation) * inDistance));
+  @override
   set inPoint(Vec2D value) {
     _inPoint = Vec2D.clone(value);
   }

lib/src/rive_core/shapes/cubic_mirrored_vertex.dart

@@ -13,12 +13,23 @@ class CubicMirroredVertex extends CubicMirroredVertexBase {
         Vec2D.fromValues(cos(rotation) * distance, sin(rotation) * distance));
   }
 
+  @override
+  set outPoint(Vec2D value) {
+    _outPoint = Vec2D.clone(value);
+  }
+
   @override
   Vec2D get inPoint {
     return _inPoint ??= Vec2D.add(Vec2D(), translation,
         Vec2D.fromValues(cos(rotation) * -distance, sin(rotation) * -distance));
   }
 
+  @override
+  set inPoint(Vec2D value) {
+    var diffIn = Vec2D.fromValues(value[0] - x, value[1] - y);
+    outPoint = Vec2D.subtract(Vec2D(), translation, diffIn);
+  }
+
   @override
   String toString() {
     return 'in ${inPoint[0]}, ${inPoint[1]} | ${translation.toString()} '

lib/src/rive_core/shapes/cubic_vertex.dart

@@ -4,4 +4,6 @@ import 'package:rive/src/generated/shapes/cubic_vertex_base.dart';
 abstract class CubicVertex extends CubicVertexBase {
   Vec2D get outPoint;
   Vec2D get inPoint;
+  set outPoint(Vec2D value);
+  set inPoint(Vec2D value);
 }

lib/src/rive_core/shapes/paint/gradient_stop.dart

@@ -1,15 +1,10 @@
 import 'dart:ui' as ui;
-import 'package:rive/src/rive_core/component.dart';
 import 'package:rive/src/rive_core/container_component.dart';
 import 'package:rive/src/generated/shapes/paint/gradient_stop_base.dart';
 import 'package:rive/src/rive_core/shapes/paint/linear_gradient.dart';
 export 'package:rive/src/generated/shapes/paint/gradient_stop_base.dart';
 
 class GradientStop extends GradientStopBase {
-  Component get timelineParent =>
-      _gradient is LinearGradient ? _gradient.parent : null;
-  String get timelineName =>
-      'Stop ${_gradient.gradientStops.indexOf(this) + 1}';
   LinearGradient _gradient;
   LinearGradient get gradient => _gradient;
   ui.Color get color => ui.Color(colorValue);

lib/src/rive_core/shapes/paint/linear_gradient.dart

@@ -10,7 +10,6 @@ export 'package:rive/src/generated/shapes/paint/linear_gradient_base.dart';
 
 class LinearGradient extends LinearGradientBase with ShapePaintMutator {
   final List<GradientStop> gradientStops = [];
-  Component get timelineProxy => parent;
   bool _paintsInWorldSpace = true;
   bool get paintsInWorldSpace => _paintsInWorldSpace;
   set paintsInWorldSpace(bool value) {

lib/src/rive_core/shapes/paint/shape_paint.dart

@@ -21,7 +21,6 @@ abstract class ShapePaint extends ShapePaintBase {
   set blendMode(BlendMode value) => _paint.blendMode = value;
   double get renderOpacity => _paintMutator.renderOpacity;
   set renderOpacity(double value) => _paintMutator.renderOpacity = value;
-  Component get timelineParent => _shapePaintContainer as Component;
   ShapePaintMutator get paintMutator => _paintMutator;
   void _changeMutator(ShapePaintMutator mutator) {
     _paint = makePaint();

lib/src/rive_core/shapes/paint/solid_color.dart

@@ -1,5 +1,4 @@
 import 'dart:ui';
-import 'package:rive/src/rive_core/component.dart';
 import 'package:rive/src/rive_core/component_dirt.dart';
 import 'package:rive/src/rive_core/shapes/paint/shape_paint_mutator.dart';
 import 'package:rive/src/rive_core/shapes/shape_paint_container.dart';
@@ -7,7 +6,6 @@ import 'package:rive/src/generated/shapes/paint/solid_color_base.dart';
 export 'package:rive/src/generated/shapes/paint/solid_color_base.dart';
 
 class SolidColor extends SolidColorBase with ShapePaintMutator {
-  Component get timelineProxy => parent;
   Color get color => Color(colorValue);
   set color(Color c) {
     colorValue = c.value;

lib/src/rive_core/shapes/paint/stroke.dart

@@ -11,7 +11,6 @@ class Stroke extends StrokeBase {
     ..strokeCap = strokeCap
     ..strokeJoin = strokeJoin
     ..strokeWidth = thickness;
-  String get timelineParentGroup => 'strokes';
   StrokeCap get strokeCap => StrokeCap.values[cap];
   set strokeCap(StrokeCap value) => cap = value.index;
   StrokeJoin get strokeJoin => StrokeJoin.values[join];

lib/src/rive_core/shapes/path.dart

@@ -1,6 +1,5 @@
 import 'dart:math';
 import 'dart:ui' as ui;
-import 'package:rive/src/rive_core/bounds_delegate.dart';
 import 'package:rive/src/rive_core/component.dart';
 import 'package:rive/src/rive_core/component_dirt.dart';
 import 'package:rive/src/rive_core/math/aabb.dart';
@@ -31,27 +30,12 @@ abstract class Path extends PathBase {
   Mat2D get pathTransform;
   Mat2D get inversePathTransform;
   Mat2D get inverseWorldTransform => _inverseWorldTransform;
-  Component get timelineParent => _shape;
   @override
   bool resolveArtboard() {
     _changeShape(null);
     return super.resolveArtboard();
   }
 
-  BoundsDelegate _delegate;
-  void markBoundsDirty() {
-    _delegate?.boundsChanged();
-  }
-
-  @override
-  void userDataChanged(dynamic from, dynamic to) {
-    if (to is BoundsDelegate) {
-      _delegate = to;
-    } else {
-      _delegate = null;
-    }
-  }
-
   @override
   void visitAncestor(Component ancestor) {
     if (_shape == null && ancestor is Shape) {

lib/src/rive_core/shapes/render_cubic_vertex.dart

@@ -1,16 +1,11 @@
-import 'dart:collection';
 import 'package:rive/src/rive_core/math/vec2d.dart';
 import 'package:rive/src/rive_core/shapes/cubic_vertex.dart';
-import 'package:rive/src/utilities/binary_buffer/binary_writer.dart';
 
 class RenderCubicVertex extends CubicVertex {
-  void changeNonNull() {}
   @override
   Vec2D inPoint;
   @override
   Vec2D outPoint;
   @override
   void onAddedDirty() {}
-  void writeRuntimeProperties(
-      BinaryWriter writer, HashMap<int, int> idLookup) {}
 }

lib/src/rive_core/shapes/shape.dart

@@ -1,5 +1,4 @@
 import 'dart:ui';
-import 'package:rive/src/rive_core/bounds_delegate.dart';
 import 'package:rive/src/rive_core/component.dart';
 import 'package:rive/src/rive_core/component_dirt.dart';
 import 'package:rive/src/rive_core/math/aabb.dart';
@@ -34,17 +33,12 @@ class Shape extends ShapeBase with ShapePaintContainer {
 
   AABB _worldBounds;
   AABB _localBounds;
-  BoundsDelegate _delegate;
   @override
   AABB get worldBounds => _worldBounds ??= computeWorldBounds();
   @override
   AABB get localBounds => _localBounds ??= computeLocalBounds();
   void markBoundsDirty() {
     _worldBounds = _localBounds = null;
-    _delegate?.boundsChanged();
-    for (final path in paths) {
-      path.markBoundsDirty();
-    }
   }
 
   @override
@@ -202,15 +196,6 @@ class Shape extends ShapeBase with ShapePaintContainer {
     return localBounds;
   }
 
-  @override
-  void userDataChanged(dynamic from, dynamic to) {
-    if (to is BoundsDelegate) {
-      _delegate = to;
-    } else {
-      _delegate = null;
-    }
-  }
-
   @override
   void blendModeValueChanged(int from, int to) => _markBlendModeDirty();
   @override