diff --git a/examples/api/lib/material/floating_action_button/floating_action_button.0.dart b/examples/api/lib/material/floating_action_button/floating_action_button.0.dart
index 26b2a5baf8..30a0b3295f 100644
--- a/examples/api/lib/material/floating_action_button/floating_action_button.0.dart
+++ b/examples/api/lib/material/floating_action_button/floating_action_button.0.dart
@@ -6,21 +6,38 @@ import 'package:flutter/material.dart';
 
 /// Flutter code sample for [FloatingActionButton].
 
-void main() => runApp(const FloatingActionButtonExampleApp());
+void main() {
+  runApp(const FloatingActionButtonExampleApp());
+}
 
 class FloatingActionButtonExampleApp extends StatelessWidget {
-  const FloatingActionButtonExampleApp({super.key});
+  const FloatingActionButtonExampleApp({ super.key });
 
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(
-      home: FabExample(),
+    return MaterialApp(
+      theme: ThemeData(useMaterial3: true),
+      home: const FloatingActionButtonExample(),
     );
   }
 }
 
-class FabExample extends StatelessWidget {
-  const FabExample({super.key});
+class FloatingActionButtonExample extends StatefulWidget {
+  const FloatingActionButtonExample({ super.key });
+
+  @override
+  State<FloatingActionButtonExample> createState() => _FloatingActionButtonExampleState();
+}
+
+class _FloatingActionButtonExampleState extends State<FloatingActionButtonExample> {
+  // The FAB's foregroundColor, backgroundColor, and shape
+  static const List<(Color?, Color? background, ShapeBorder?)> customizations = <(Color?, Color?, ShapeBorder?)>[
+    (null, null, null), // The FAB uses its default for null parameters.
+    (null, Colors.green, null),
+    (Colors.white, Colors.green, null),
+    (Colors.white, Colors.green, CircleBorder()),
+  ];
+  int index = 0; // Selects the customization.
 
   @override
   Widget build(BuildContext context) {
@@ -31,9 +48,13 @@ class FabExample extends StatelessWidget {
       body: const Center(child: Text('Press the button below!')),
       floatingActionButton: FloatingActionButton(
         onPressed: () {
-          // Add your onPressed code here!
+          setState(() {
+            index = (index + 1) % customizations.length;
+          });
         },
-        backgroundColor: Colors.green,
+        foregroundColor: customizations[index].$1,
+        backgroundColor: customizations[index].$2,
+        shape: customizations[index].$3,
         child: const Icon(Icons.navigation),
       ),
     );
diff --git a/examples/api/lib/material/floating_action_button/floating_action_button.1.dart b/examples/api/lib/material/floating_action_button/floating_action_button.1.dart
index 7180a52d43..9650247a25 100644
--- a/examples/api/lib/material/floating_action_button/floating_action_button.1.dart
+++ b/examples/api/lib/material/floating_action_button/floating_action_button.1.dart
@@ -13,8 +13,9 @@ class FloatingActionButtonExampleApp extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    return const MaterialApp(
-      home: FabExample(),
+    return MaterialApp(
+      theme: ThemeData(colorSchemeSeed: const Color(0xff6750a4), useMaterial3: true),
+      home: const FabExample(),
     );
   }
 }
@@ -28,16 +29,77 @@ class FabExample extends StatelessWidget {
       appBar: AppBar(
         title: const Text('FloatingActionButton Sample'),
       ),
-      body: const Center(
-        child: Text('Press the button with a label below!'),
-      ),
-      floatingActionButton: FloatingActionButton.extended(
-        onPressed: () {
-          // Add your onPressed code here!
-        },
-        label: const Text('Approve'),
-        icon: const Icon(Icons.thumb_up),
-        backgroundColor: Colors.pink,
+      body: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
+          children: <Widget>[
+            Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: <Widget>[
+                const Text('Small'),
+                const SizedBox(width: 16),
+                // An example of the small floating action button.
+                //
+                // https://m3.material.io/components/floating-action-button/specs#669a1be8-7271-48cb-a74d-dd502d73bda4
+                FloatingActionButton.small(
+                  onPressed: () {
+                    // Add your onPressed code here!
+                  },
+                  child: const Icon(Icons.add),
+                ),
+              ],
+            ),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: <Widget>[
+                const Text('Regular'),
+                const SizedBox(width: 16),
+                // An example of the regular floating action button.
+                //
+                // https://m3.material.io/components/floating-action-button/specs#71504201-7bd1-423d-8bb7-07e0291743e5
+                FloatingActionButton(
+                  onPressed: () {
+                    // Add your onPressed code here!
+                  },
+                  child: const Icon(Icons.add),
+                ),
+              ],
+            ),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: <Widget>[
+                const Text('Large'),
+                const SizedBox(width: 16),
+                // An example of the large floating action button.
+                //
+                // https://m3.material.io/components/floating-action-button/specs#9d7d3d6a-bab7-47cb-be32-5596fbd660fe
+                FloatingActionButton.large(
+                  onPressed: () {
+                    // Add your onPressed code here!
+                  },
+                  child: const Icon(Icons.add),
+                ),
+              ],
+            ),
+            Row(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: <Widget>[
+                const Text('Extended'),
+                const SizedBox(width: 16),
+                // An example of the extended floating action button.
+                //
+                // https://m3.material.io/components/extended-fab/specs#686cb8af-87c9-48e8-a3e1-db9da6f6c69b
+                FloatingActionButton.extended(
+                  onPressed: () {
+                    // Add your onPressed code here!
+                  },
+                  label: const Text('Add'),
+                  icon: const Icon(Icons.add),
+                ),
+              ],
+            ),
+          ],
+        ),
       ),
     );
   }
diff --git a/examples/api/lib/material/floating_action_button/floating_action_button.2.dart b/examples/api/lib/material/floating_action_button/floating_action_button.2.dart
deleted file mode 100644
index 4eedfc1a2b..0000000000
--- a/examples/api/lib/material/floating_action_button/floating_action_button.2.dart
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-
-/// Flutter code sample for [FloatingActionButton].
-
-void main() => runApp(const FloatingActionButtonExampleApp());
-
-class FloatingActionButtonExampleApp extends StatelessWidget {
-  const FloatingActionButtonExampleApp({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      theme: ThemeData(colorSchemeSeed: const Color(0xff6750a4), useMaterial3: true),
-      home: const FabExample(),
-    );
-  }
-}
-
-class FabExample extends StatelessWidget {
-  const FabExample({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: const Text('FloatingActionButton Sample'),
-      ),
-      body: const Center(child: Text('Press the button below!')),
-      // An example of the floating action button.
-      //
-      // https://m3.material.io/components/floating-action-button/specs
-      floatingActionButton: FloatingActionButton(
-        onPressed: () {
-          // Add your onPressed code here!
-        },
-        child: const Icon(Icons.add),
-      ),
-    );
-  }
-}
diff --git a/examples/api/lib/material/floating_action_button/floating_action_button.3.dart b/examples/api/lib/material/floating_action_button/floating_action_button.3.dart
deleted file mode 100644
index 9650247a25..0000000000
--- a/examples/api/lib/material/floating_action_button/floating_action_button.3.dart
+++ /dev/null
@@ -1,106 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-
-/// Flutter code sample for [FloatingActionButton].
-
-void main() => runApp(const FloatingActionButtonExampleApp());
-
-class FloatingActionButtonExampleApp extends StatelessWidget {
-  const FloatingActionButtonExampleApp({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return MaterialApp(
-      theme: ThemeData(colorSchemeSeed: const Color(0xff6750a4), useMaterial3: true),
-      home: const FabExample(),
-    );
-  }
-}
-
-class FabExample extends StatelessWidget {
-  const FabExample({super.key});
-
-  @override
-  Widget build(BuildContext context) {
-    return Scaffold(
-      appBar: AppBar(
-        title: const Text('FloatingActionButton Sample'),
-      ),
-      body: Center(
-        child: Column(
-          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
-          children: <Widget>[
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                const Text('Small'),
-                const SizedBox(width: 16),
-                // An example of the small floating action button.
-                //
-                // https://m3.material.io/components/floating-action-button/specs#669a1be8-7271-48cb-a74d-dd502d73bda4
-                FloatingActionButton.small(
-                  onPressed: () {
-                    // Add your onPressed code here!
-                  },
-                  child: const Icon(Icons.add),
-                ),
-              ],
-            ),
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                const Text('Regular'),
-                const SizedBox(width: 16),
-                // An example of the regular floating action button.
-                //
-                // https://m3.material.io/components/floating-action-button/specs#71504201-7bd1-423d-8bb7-07e0291743e5
-                FloatingActionButton(
-                  onPressed: () {
-                    // Add your onPressed code here!
-                  },
-                  child: const Icon(Icons.add),
-                ),
-              ],
-            ),
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                const Text('Large'),
-                const SizedBox(width: 16),
-                // An example of the large floating action button.
-                //
-                // https://m3.material.io/components/floating-action-button/specs#9d7d3d6a-bab7-47cb-be32-5596fbd660fe
-                FloatingActionButton.large(
-                  onPressed: () {
-                    // Add your onPressed code here!
-                  },
-                  child: const Icon(Icons.add),
-                ),
-              ],
-            ),
-            Row(
-              mainAxisAlignment: MainAxisAlignment.center,
-              children: <Widget>[
-                const Text('Extended'),
-                const SizedBox(width: 16),
-                // An example of the extended floating action button.
-                //
-                // https://m3.material.io/components/extended-fab/specs#686cb8af-87c9-48e8-a3e1-db9da6f6c69b
-                FloatingActionButton.extended(
-                  onPressed: () {
-                    // Add your onPressed code here!
-                  },
-                  label: const Text('Add'),
-                  icon: const Icon(Icons.add),
-                ),
-              ],
-            ),
-          ],
-        ),
-      ),
-    );
-  }
-}
diff --git a/examples/api/test/material/floating_action_button/floating_action_button.0_test.dart b/examples/api/test/material/floating_action_button/floating_action_button.0_test.dart
index 9fa5b6c497..bb1f1cbb4b 100644
--- a/examples/api/test/material/floating_action_button/floating_action_button.0_test.dart
+++ b/examples/api/test/material/floating_action_button/floating_action_button.0_test.dart
@@ -16,11 +16,30 @@ void main() {
     expect(find.byType(FloatingActionButton), findsOneWidget);
     expect(find.byIcon(Icons.navigation), findsOneWidget);
 
-    final Finder materialButtonFinder = find.byType(RawMaterialButton);
     RawMaterialButton getRawMaterialButtonWidget() {
-      return tester.widget<RawMaterialButton>(materialButtonFinder);
+      return tester.widget<RawMaterialButton>(find.byType(RawMaterialButton));
     }
+
+    Color? getIconColor() {
+      final RichText iconRichText = tester.widget<RichText>(
+        find.descendant(of: find.byIcon(Icons.navigation), matching: find.byType(RichText)),
+      );
+      return iconRichText.text.style?.color;
+    }
+
+    await tester.tap(find.byType(FloatingActionButton));
+    await tester.pumpAndSettle(); // Wait for the animation to finish.
     expect(getRawMaterialButtonWidget().fillColor, Colors.green);
+
+    await tester.tap(find.byType(FloatingActionButton));
+    await tester.pumpAndSettle(); // Wait for the animation to finish.
+    expect(getRawMaterialButtonWidget().fillColor, Colors.green);
+    expect(getIconColor(), Colors.white);
+
+    await tester.tap(find.byType(FloatingActionButton));
+    await tester.pumpAndSettle(); // Wait for the animation to finish.
+    expect(getRawMaterialButtonWidget().fillColor, Colors.green);
+    expect(getIconColor(), Colors.white);
     expect(getRawMaterialButtonWidget().shape, const CircleBorder());
   });
 }
diff --git a/examples/api/test/material/floating_action_button/floating_action_button.1_test.dart b/examples/api/test/material/floating_action_button/floating_action_button.1_test.dart
index 049d63576b..eb6ba0e8e7 100644
--- a/examples/api/test/material/floating_action_button/floating_action_button.1_test.dart
+++ b/examples/api/test/material/floating_action_button/floating_action_button.1_test.dart
@@ -8,20 +8,42 @@ import 'package:flutter_api_samples/material/floating_action_button/floating_act
 import 'package:flutter_test/flutter_test.dart';
 
 void main() {
-  testWidgets('FloatingActionButton.extended', (WidgetTester tester) async {
+  testWidgets('FloatingActionButton variants', (WidgetTester tester) async {
+    RawMaterialButton getRawMaterialButtonWidget(Finder finder) {
+      return tester.widget<RawMaterialButton>(finder);
+    }
+
     await tester.pumpWidget(
       const example.FloatingActionButtonExampleApp(),
     );
 
-    expect(find.byType(FloatingActionButton), findsOneWidget);
-    expect(find.text('Approve'), findsOneWidget);
-    expect(find.byIcon(Icons.thumb_up), findsOneWidget);
+    final ThemeData theme = ThemeData(colorSchemeSeed: const Color(0xff6750a4), useMaterial3: true);
 
-    final Finder materialButtonFinder = find.byType(RawMaterialButton);
-    RawMaterialButton getRawMaterialButtonWidget() {
-      return tester.widget<RawMaterialButton>(materialButtonFinder);
-    }
-    expect(getRawMaterialButtonWidget().fillColor, Colors.pink);
-    expect(getRawMaterialButtonWidget().shape, const StadiumBorder());
+    expect(find.byType(FloatingActionButton), findsNWidgets(4));
+    expect(find.byIcon(Icons.add), findsNWidgets(4));
+
+    final Finder smallFabMaterialButton = find.byType(RawMaterialButton).at(0);
+    final RenderBox smallFabRenderBox = tester.renderObject(smallFabMaterialButton);
+    expect(smallFabRenderBox.size, const Size(48.0, 48.0));
+    expect(getRawMaterialButtonWidget(smallFabMaterialButton).fillColor, theme.colorScheme.primaryContainer);
+    expect(getRawMaterialButtonWidget(smallFabMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(12.0)));
+
+    final Finder regularFABMaterialButton = find.byType(RawMaterialButton).at(1);
+    final RenderBox regularFABRenderBox = tester.renderObject(regularFABMaterialButton);
+    expect(regularFABRenderBox.size, const Size(56.0, 56.0));
+    expect(getRawMaterialButtonWidget(regularFABMaterialButton).fillColor, theme.colorScheme.primaryContainer);
+    expect(getRawMaterialButtonWidget(regularFABMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(16.0)));
+
+    final Finder largeFABMaterialButton = find.byType(RawMaterialButton).at(2);
+    final RenderBox largeFABRenderBox = tester.renderObject(largeFABMaterialButton);
+    expect(largeFABRenderBox.size, const Size(96.0, 96.0));
+    expect(getRawMaterialButtonWidget(largeFABMaterialButton).fillColor, theme.colorScheme.primaryContainer);
+    expect(getRawMaterialButtonWidget(largeFABMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(28.0)));
+
+    final Finder extendedFABMaterialButton = find.byType(RawMaterialButton).at(3);
+    final RenderBox extendedFABRenderBox = tester.renderObject(extendedFABMaterialButton);
+    expect(extendedFABRenderBox.size, const Size(111.0, 56.0));
+    expect(getRawMaterialButtonWidget(extendedFABMaterialButton).fillColor, theme.colorScheme.primaryContainer);
+    expect(getRawMaterialButtonWidget(extendedFABMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(16.0)));
   });
 }
diff --git a/examples/api/test/material/floating_action_button/floating_action_button.2_test.dart b/examples/api/test/material/floating_action_button/floating_action_button.2_test.dart
deleted file mode 100644
index d7cd0edd95..0000000000
--- a/examples/api/test/material/floating_action_button/floating_action_button.2_test.dart
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:flutter_api_samples/material/floating_action_button/floating_action_button.2.dart'
-    as example;
-import 'package:flutter_test/flutter_test.dart';
-
-void main() {
-  testWidgets('FloatingActionButton - Material 3', (WidgetTester tester) async {
-    RawMaterialButton getRawMaterialButtonWidget(Finder finder) {
-      return tester.widget<RawMaterialButton>(finder);
-    }
-    await tester.pumpWidget(
-      const example.FloatingActionButtonExampleApp(),
-    );
-
-    expect(find.byType(FloatingActionButton), findsOneWidget);
-    expect(find.byIcon(Icons.add), findsOneWidget);
-
-    final ThemeData theme = ThemeData(colorSchemeSeed: const Color(0xff6750a4), useMaterial3: true);
-    final Finder materialButtonFinder = find.byType(RawMaterialButton);
-    expect(getRawMaterialButtonWidget(materialButtonFinder).fillColor, theme.colorScheme.primaryContainer);
-    expect(getRawMaterialButtonWidget(materialButtonFinder).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(16.0)));
-  });
-}
diff --git a/examples/api/test/material/floating_action_button/floating_action_button.3_test.dart b/examples/api/test/material/floating_action_button/floating_action_button.3_test.dart
deleted file mode 100644
index 173ef748d0..0000000000
--- a/examples/api/test/material/floating_action_button/floating_action_button.3_test.dart
+++ /dev/null
@@ -1,49 +0,0 @@
-// Copyright 2014 The Flutter Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-import 'package:flutter/material.dart';
-import 'package:flutter_api_samples/material/floating_action_button/floating_action_button.3.dart'
-    as example;
-import 'package:flutter_test/flutter_test.dart';
-
-void main() {
-  testWidgets('FloatingActionButton variants', (WidgetTester tester) async {
-    RawMaterialButton getRawMaterialButtonWidget(Finder finder) {
-      return tester.widget<RawMaterialButton>(finder);
-    }
-
-    await tester.pumpWidget(
-      const example.FloatingActionButtonExampleApp(),
-    );
-
-    final ThemeData theme = ThemeData(colorSchemeSeed: const Color(0xff6750a4), useMaterial3: true);
-
-    expect(find.byType(FloatingActionButton), findsNWidgets(4));
-    expect(find.byIcon(Icons.add), findsNWidgets(4));
-
-    final Finder smallFabMaterialButton = find.byType(RawMaterialButton).at(0);
-    final RenderBox smallFabRenderBox = tester.renderObject(smallFabMaterialButton);
-    expect(smallFabRenderBox.size, const Size(48.0, 48.0));
-    expect(getRawMaterialButtonWidget(smallFabMaterialButton).fillColor, theme.colorScheme.primaryContainer);
-    expect(getRawMaterialButtonWidget(smallFabMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(12.0)));
-
-    final Finder regularFABMaterialButton = find.byType(RawMaterialButton).at(1);
-    final RenderBox regularFABRenderBox = tester.renderObject(regularFABMaterialButton);
-    expect(regularFABRenderBox.size, const Size(56.0, 56.0));
-    expect(getRawMaterialButtonWidget(regularFABMaterialButton).fillColor, theme.colorScheme.primaryContainer);
-    expect(getRawMaterialButtonWidget(regularFABMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(16.0)));
-
-    final Finder largeFABMaterialButton = find.byType(RawMaterialButton).at(2);
-    final RenderBox largeFABRenderBox = tester.renderObject(largeFABMaterialButton);
-    expect(largeFABRenderBox.size, const Size(96.0, 96.0));
-    expect(getRawMaterialButtonWidget(largeFABMaterialButton).fillColor, theme.colorScheme.primaryContainer);
-    expect(getRawMaterialButtonWidget(largeFABMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(28.0)));
-
-    final Finder extendedFABMaterialButton = find.byType(RawMaterialButton).at(3);
-    final RenderBox extendedFABRenderBox = tester.renderObject(extendedFABMaterialButton);
-    expect(extendedFABRenderBox.size, const Size(111.0, 56.0));
-    expect(getRawMaterialButtonWidget(extendedFABMaterialButton).fillColor, theme.colorScheme.primaryContainer);
-    expect(getRawMaterialButtonWidget(extendedFABMaterialButton).shape, RoundedRectangleBorder(borderRadius:  BorderRadius.circular(16.0)));
-  });
-}
diff --git a/packages/flutter/lib/src/material/floating_action_button.dart b/packages/flutter/lib/src/material/floating_action_button.dart
index 1a580b3366..dbc08569fd 100644
--- a/packages/flutter/lib/src/material/floating_action_button.dart
+++ b/packages/flutter/lib/src/material/floating_action_button.dart
@@ -52,39 +52,21 @@ enum _FloatingActionButtonType {
 /// action button.
 ///
 /// {@tool dartpad}
-/// This example shows how to display a [FloatingActionButton] in a
-/// [Scaffold], with a pink [backgroundColor] and a thumbs up [Icon].
-///
-/// ![](https://flutter.github.io/assets-for-api-docs/assets/material/floating_action_button.png)
+/// This example shows a [FloatingActionButton] in its usual position within a
+/// [Scaffold]. Pressing the button cycles it through a few variations in its
+/// [foregroundColor], [backgroundColor], and [shape]. The button automatically
+/// animates its segue from one set of visual parameters to another.
 ///
 /// ** See code in examples/api/lib/material/floating_action_button/floating_action_button.0.dart **
 /// {@end-tool}
 ///
 /// {@tool dartpad}
-/// This example shows how to make an extended [FloatingActionButton] in a
-/// [Scaffold], with a pink [backgroundColor], a thumbs up [Icon] and a
-/// [Text] label that reads "Approve".
-///
-/// ![](https://flutter.github.io/assets-for-api-docs/assets/material/floating_action_button_label.png)
+/// This sample shows all the variants of [FloatingActionButton] widget as
+/// described in: https://m3.material.io/components/floating-action-button/overview.
 ///
 /// ** See code in examples/api/lib/material/floating_action_button/floating_action_button.1.dart **
 /// {@end-tool}
 ///
-/// Material Design 3 introduced new types of floating action buttons.
-/// {@tool dartpad}
-/// This sample shows the creation of [FloatingActionButton] widget in the typical location in a Scaffold,
-/// as described in: https://m3.material.io/components/floating-action-button/overview
-///
-/// ** See code in examples/api/lib/material/floating_action_button/floating_action_button.2.dart **
-/// {@end-tool}
-///
-/// {@tool dartpad}
-/// This sample shows the creation of all the variants of [FloatingActionButton] widget as
-/// described in: https://m3.material.io/components/floating-action-button/overview
-///
-/// ** See code in examples/api/lib/material/floating_action_button/floating_action_button.3.dart **
-/// {@end-tool}
-///
 /// See also:
 ///
 ///  * [Scaffold], in which floating action buttons typically live.