diff --git a/packages/pinball_components/assets/images/boundary/bottom.png b/packages/pinball_components/assets/images/boundary/bottom.png
index 7caf3e2f..2effb7ac 100644
Binary files a/packages/pinball_components/assets/images/boundary/bottom.png and b/packages/pinball_components/assets/images/boundary/bottom.png differ
diff --git a/packages/pinball_components/lib/src/components/boundaries.dart b/packages/pinball_components/lib/src/components/boundaries.dart
index a542cd2a..16c0f7b7 100644
--- a/packages/pinball_components/lib/src/components/boundaries.dart
+++ b/packages/pinball_components/lib/src/components/boundaries.dart
@@ -30,9 +30,9 @@ class _BottomBoundary extends BodyComponent with InitialPosition {
 
     final bottomLeftCurve = BezierCurveShape(
       controlPoints: [
-        Vector2(-43.6, -44.4),
-        Vector2(-31, -43.4),
-        Vector2(-18.7, -52.1),
+        Vector2(-43.9, -41.8),
+        Vector2(-35.7, -43),
+        Vector2(-19.9, -51),
       ],
     );
     final bottomLeftCurveFixtureDef = FixtureDef(bottomLeftCurve);
@@ -40,9 +40,9 @@ class _BottomBoundary extends BodyComponent with InitialPosition {
 
     final bottomRightCurve = BezierCurveShape(
       controlPoints: [
-        Vector2(31.8, -44.1),
-        Vector2(21.95, -47),
-        Vector2(12.3, -51.4),
+        Vector2(31.8, -44.8),
+        Vector2(21.95, -47.7),
+        Vector2(12.3, -52.1),
       ],
     );
     final bottomRightCurveFixtureDef = FixtureDef(bottomRightCurve);
@@ -78,7 +78,7 @@ class _BottomBoundarySpriteComponent extends SpriteComponent with HasGameRef {
     this.sprite = sprite;
     size = sprite.originalSize / 10;
     anchor = Anchor.center;
-    position = Vector2(-5.4, 57.4);
+    position = Vector2(-5.4, 55.8);
   }
 }
 
@@ -114,7 +114,7 @@ class _OuterBoundary extends BodyComponent with InitialPosition {
     final leftWall = EdgeShape()
       ..set(
         Vector2(-32.3, 57.2),
-        Vector2(-44.1, -44.4),
+        Vector2(-43.9, -41.8),
       );
     final leftWallFixtureDef = FixtureDef(leftWall);
     fixturesDefs.add(leftWallFixtureDef);
diff --git a/packages/pinball_components/sandbox/lib/common/trace.dart b/packages/pinball_components/sandbox/lib/common/trace.dart
index 8585169e..44760a7c 100644
--- a/packages/pinball_components/sandbox/lib/common/trace.dart
+++ b/packages/pinball_components/sandbox/lib/common/trace.dart
@@ -12,8 +12,7 @@ extension BodyTrace on BodyComponent {
 
     unawaited(
       mounted.whenComplete(() {
-        final sprite = children.whereType<SpriteComponent>().first;
-        sprite.paint.color = sprite.paint.color.withOpacity(0.5);
+        children.whereType<SpriteComponent>().first.setOpacity(0.5);
 
         descendants().whereType<JointAnchor>().forEach((anchor) {
           final fixtureDef = FixtureDef(CircleShape()..radius = 0.5);
diff --git a/packages/pinball_components/sandbox/lib/main.dart b/packages/pinball_components/sandbox/lib/main.dart
index 3d65dbe2..b3b331a7 100644
--- a/packages/pinball_components/sandbox/lib/main.dart
+++ b/packages/pinball_components/sandbox/lib/main.dart
@@ -24,5 +24,6 @@ void main() {
   addSlingshotStories(dashbook);
   addSparkyBumperStories(dashbook);
   addZoomStories(dashbook);
+  addBoundariesStories(dashbook);
   runApp(dashbook);
 }
diff --git a/packages/pinball_components/sandbox/lib/stories/boundaries/boundaries_game.dart b/packages/pinball_components/sandbox/lib/stories/boundaries/boundaries_game.dart
new file mode 100644
index 00000000..a98fb7b9
--- /dev/null
+++ b/packages/pinball_components/sandbox/lib/stories/boundaries/boundaries_game.dart
@@ -0,0 +1,29 @@
+import 'package:flame/extensions.dart';
+import 'package:pinball_components/pinball_components.dart';
+import 'package:sandbox/common/common.dart';
+import 'package:sandbox/stories/ball/basic_ball_game.dart';
+
+class BoundariesGame extends BasicBallGame with Traceable {
+  BoundariesGame() : super(color: const Color(0xFFFF0000));
+
+  static const info = '''
+    Shows how Boundaries are rendered.
+
+    - Activate the "trace" parameter to overlay the body.
+    - Tap anywhere on the screen to spawn a ball into the game.
+''';
+
+  @override
+  Future<void> onLoad() async {
+    await super.onLoad();
+
+    await addFromBlueprint(Boundaries());
+    await ready();
+
+    camera
+      ..followVector2(Vector2.zero())
+      ..zoom = 6;
+
+    await traceAllBodies();
+  }
+}
diff --git a/packages/pinball_components/sandbox/lib/stories/boundaries/stories.dart b/packages/pinball_components/sandbox/lib/stories/boundaries/stories.dart
new file mode 100644
index 00000000..bebb0df7
--- /dev/null
+++ b/packages/pinball_components/sandbox/lib/stories/boundaries/stories.dart
@@ -0,0 +1,15 @@
+import 'package:dashbook/dashbook.dart';
+import 'package:flame/game.dart';
+import 'package:sandbox/common/common.dart';
+import 'package:sandbox/stories/boundaries/boundaries_game.dart';
+
+void addBoundariesStories(Dashbook dashbook) {
+  dashbook.storiesOf('Boundaries').add(
+        'Basic',
+        (context) => GameWidget(
+          game: BoundariesGame()..trace = context.boolProperty('Trace', true),
+        ),
+        codeLink: buildSourceLink('boundaries_game/basic.dart'),
+        info: BoundariesGame.info,
+      );
+}
diff --git a/packages/pinball_components/sandbox/lib/stories/stories.dart b/packages/pinball_components/sandbox/lib/stories/stories.dart
index 09e06779..009f53ac 100644
--- a/packages/pinball_components/sandbox/lib/stories/stories.dart
+++ b/packages/pinball_components/sandbox/lib/stories/stories.dart
@@ -1,5 +1,6 @@
 export 'ball/stories.dart';
 export 'baseboard/stories.dart';
+export 'boundaries/stories.dart';
 export 'chrome_dino/stories.dart';
 export 'effects/stories.dart';
 export 'flipper/stories.dart';
diff --git a/packages/pinball_components/test/src/components/golden/boundaries.png b/packages/pinball_components/test/src/components/golden/boundaries.png
index d1ef9ce1..f184e3eb 100644
Binary files a/packages/pinball_components/test/src/components/golden/boundaries.png and b/packages/pinball_components/test/src/components/golden/boundaries.png differ