diff --git a/dev/bots/check_code_samples.dart b/dev/bots/check_code_samples.dart
index 577ef4e2281..d09dd68d73d 100644
--- a/dev/bots/check_code_samples.dart
+++ b/dev/bots/check_code_samples.dart
@@ -325,15 +325,6 @@ final Set<String> _knownMissingTests = <String>{
   'examples/api/test/material/flexible_space_bar/flexible_space_bar.0_test.dart',
   'examples/api/test/material/chip/deletable_chip_attributes.on_deleted.0_test.dart',
   'examples/api/test/material/expansion_panel/expansion_panel_list.expansion_panel_list_radio.0_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.1_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.prefix_icon_constraints.0_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.material_state.0_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.2_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.0_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.label.0_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.suffix_icon_constraints.0_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.3_test.dart',
-  'examples/api/test/material/input_decorator/input_decoration.material_state.1_test.dart',
   'examples/api/test/material/text_form_field/text_form_field.1_test.dart',
   'examples/api/test/material/scrollbar/scrollbar.1_test.dart',
   'examples/api/test/material/search_anchor/search_anchor.0_test.dart',
diff --git a/examples/api/lib/material/input_decorator/input_decoration.material_state.0.dart b/examples/api/lib/material/input_decorator/input_decoration.widget_state.0.dart
similarity index 81%
rename from examples/api/lib/material/input_decorator/input_decoration.material_state.0.dart
rename to examples/api/lib/material/input_decorator/input_decoration.widget_state.0.dart
index a361606fc16..c20700dd0ca 100644
--- a/examples/api/lib/material/input_decorator/input_decoration.material_state.0.dart
+++ b/examples/api/lib/material/input_decorator/input_decoration.widget_state.0.dart
@@ -32,13 +32,10 @@ class MaterialStateExample extends StatelessWidget {
       initialValue: 'abc',
       decoration: InputDecoration(
         prefixIcon: const Icon(Icons.person),
-        prefixIconColor: MaterialStateColor.resolveWith((Set<MaterialState> states) {
-          if (states.contains(MaterialState.focused)) {
+        prefixIconColor: WidgetStateColor.resolveWith((Set<WidgetState> states) {
+          if (states.contains(WidgetState.focused)) {
             return Colors.green;
           }
-          if (states.contains(MaterialState.error)) {
-            return Colors.red;
-          }
           return Colors.grey;
         }),
       ),
diff --git a/examples/api/lib/material/input_decorator/input_decoration.material_state.1.dart b/examples/api/lib/material/input_decorator/input_decoration.widget_state.1.dart
similarity index 69%
rename from examples/api/lib/material/input_decorator/input_decoration.material_state.1.dart
rename to examples/api/lib/material/input_decorator/input_decoration.widget_state.1.dart
index 69a478cf318..06401d60ec2 100644
--- a/examples/api/lib/material/input_decorator/input_decoration.material_state.1.dart
+++ b/examples/api/lib/material/input_decorator/input_decoration.widget_state.1.dart
@@ -32,24 +32,31 @@ class MaterialStateExample extends StatelessWidget {
     return Theme(
       data: themeData.copyWith(
         inputDecorationTheme: themeData.inputDecorationTheme.copyWith(
-          prefixIconColor: MaterialStateColor.resolveWith(
-            (Set<MaterialState> states) {
-              if (states.contains(MaterialState.focused)) {
-                return Colors.green;
-              }
-              if (states.contains(MaterialState.error)) {
+          prefixIconColor: WidgetStateColor.resolveWith(
+            (Set<WidgetState> states) {
+              if (states.contains(WidgetState.error)) {
                 return Colors.red;
               }
+              if (states.contains(WidgetState.focused)) {
+                return Colors.blue;
+              }
               return Colors.grey;
             },
           ),
         ),
       ),
       child: TextFormField(
-        initialValue: 'abc',
+        initialValue: 'example.com',
         decoration: const InputDecoration(
-          prefixIcon: Icon(Icons.person),
+          prefixIcon: Icon(Icons.web),
         ),
+          autovalidateMode: AutovalidateMode.always,
+          validator: (String? text) {
+            if (text?.endsWith('.com') ?? false) {
+              return null;
+            }
+            return 'No .com tld';
+          }
       ),
     );
   }
diff --git a/examples/api/test/material/input_decorator/input_decoration.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.0_test.dart
new file mode 100644
index 00000000000..3abb7db2753
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.0_test.dart
@@ -0,0 +1,23 @@
+// 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/input_decorator/input_decoration.0.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('TextField is decorated', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.InputDecorationExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextField), findsOneWidget);
+    expect(find.text('Hint Text'), findsOneWidget);
+    expect(find.text('Helper Text'), findsOneWidget);
+    expect(find.text('0 characters'), findsOneWidget);
+
+    expect(find.byIcon(Icons.send), findsOneWidget);
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.1_test.dart b/examples/api/test/material/input_decorator/input_decoration.1_test.dart
new file mode 100644
index 00000000000..f6192442477
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.1_test.dart
@@ -0,0 +1,28 @@
+// 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/input_decorator/input_decoration.1.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('TextField is decorated', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.InputDecorationExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextField), findsOneWidget);
+    expect(find.text('Hint Text'), findsOneWidget);
+
+    expect(
+      tester.widget<TextField>(find.byType(TextField)).decoration?.contentPadding,
+      EdgeInsets.zero,
+    );
+    expect(
+      tester.widget<TextField>(find.byType(TextField)).decoration?.border,
+      const OutlineInputBorder(),
+    );
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.2_test.dart b/examples/api/test/material/input_decorator/input_decoration.2_test.dart
new file mode 100644
index 00000000000..cf45965d873
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.2_test.dart
@@ -0,0 +1,27 @@
+// 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/input_decorator/input_decoration.2.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('TextField is decorated', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.InputDecorationExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextField), findsOneWidget);
+    expect(find.text('Hint Text'), findsOneWidget);
+    expect(find.text('Error Text'), findsOneWidget);
+
+    expect(
+      tester.widget<TextField>(find.byType(TextField))
+          .decoration
+          ?.border,
+      isNotNull,
+    );
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.3_test.dart b/examples/api/test/material/input_decorator/input_decoration.3_test.dart
new file mode 100644
index 00000000000..9974ca8c880
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.3_test.dart
@@ -0,0 +1,41 @@
+// 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/input_decorator/input_decoration.3.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('TextFormField is decorated', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.InputDecorationExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextFormField), findsOneWidget);
+    expect(find.text('Prefix'), findsOneWidget);
+    expect(find.text('abc'), findsOneWidget);
+    expect(find.text('Suffix'), findsOneWidget);
+    expect(
+      tester.widget<TextField>(find.byType(TextField)).decoration?.border,
+      const OutlineInputBorder(),
+    );
+  });
+
+  testWidgets('Decorations are correctly ordered', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.InputDecorationExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextFormField), findsOneWidget);
+
+    final double prefixX = tester.getCenter(find.text('Prefix')).dx;
+    final double contentX = tester.getCenter(find.text('abc')).dx;
+    final double suffixX = tester.getCenter(find.text('Suffix')).dx;
+
+    expect(prefixX, lessThan(contentX));
+    expect(contentX, lessThan(suffixX));
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.floating_label_style_error.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.floating_label_style_error.0_test.dart
index 0ee58183e45..51a2012427c 100644
--- a/examples/api/test/material/input_decorator/input_decoration.floating_label_style_error.0_test.dart
+++ b/examples/api/test/material/input_decorator/input_decoration.floating_label_style_error.0_test.dart
@@ -16,7 +16,10 @@ void main() {
     await tester.tap(find.byType(TextFormField));
     await tester.pumpAndSettle();
 
-    final AnimatedDefaultTextStyle label = tester.firstWidget(find.ancestor(of: find.text('Name'), matching: find.byType(AnimatedDefaultTextStyle)));
+    final AnimatedDefaultTextStyle label = tester.firstWidget(find.ancestor(
+      of: find.text('Name'),
+      matching: find.byType(AnimatedDefaultTextStyle),
+    ));
     expect(label.style.color, theme.data.colorScheme.error);
   });
 }
diff --git a/examples/api/test/material/input_decorator/input_decoration.helper.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.helper.0_test.dart
index 35c9e43f70c..ece9852df42 100644
--- a/examples/api/test/material/input_decorator/input_decoration.helper.0_test.dart
+++ b/examples/api/test/material/input_decorator/input_decoration.helper.0_test.dart
@@ -7,7 +7,7 @@ import 'package:flutter_api_samples/material/input_decorator/input_decoration.he
 import 'package:flutter_test/flutter_test.dart';
 
 void main() {
-  testWidgets('InputDecorator helper', (WidgetTester tester) async {
+  testWidgets('Shows multi element InputDecorator help decoration', (WidgetTester tester) async {
     await tester.pumpWidget(
       const example.HelperExampleApp(),
     );
diff --git a/examples/api/test/material/input_decorator/input_decoration.label.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.label.0_test.dart
new file mode 100644
index 00000000000..7cd71bda33b
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.label.0_test.dart
@@ -0,0 +1,20 @@
+// 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/input_decorator/input_decoration.label.0.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Decorates TextField in sample app with label', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.LabelExampleApp(),
+    );
+    expect(find.text('InputDecoration.label Sample'), findsOneWidget);
+
+    expect(find.byType(TextField), findsOneWidget);
+    expect(find.text('Username'), findsOneWidget);
+    expect(find.text('*'), findsOneWidget);
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.label_style_error.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.label_style_error.0_test.dart
index 640b8fd228a..f0840c26b53 100644
--- a/examples/api/test/material/input_decorator/input_decoration.label_style_error.0_test.dart
+++ b/examples/api/test/material/input_decorator/input_decoration.label_style_error.0_test.dart
@@ -13,7 +13,10 @@ void main() {
     );
     final Theme theme = tester.firstWidget(find.byType(Theme));
 
-    final AnimatedDefaultTextStyle label = tester.firstWidget(find.ancestor(of: find.text('Name'), matching: find.byType(AnimatedDefaultTextStyle)));
+    final AnimatedDefaultTextStyle label = tester.firstWidget(find.ancestor(
+      of: find.text('Name'),
+      matching: find.byType(AnimatedDefaultTextStyle),
+    ));
     expect(label.style.color, theme.data.colorScheme.error);
   });
 }
diff --git a/examples/api/test/material/input_decorator/input_decoration.prefix_icon_constraints.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.prefix_icon_constraints.0_test.dart
new file mode 100644
index 00000000000..a83252be857
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.prefix_icon_constraints.0_test.dart
@@ -0,0 +1,71 @@
+// 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/input_decorator/input_decoration.prefix_icon_constraints.0.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Shows two TextFields decorated with prefix icon sizes matching their hint text', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.PrefixIconConstraintsExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextField), findsNWidgets(2));
+    expect(find.byIcon(Icons.search), findsNWidgets(2));
+    expect(find.text('Normal Icon Constraints'), findsOneWidget);
+    expect(find.text('Smaller Icon Constraints'), findsOneWidget);
+
+    final Finder normalIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Normal Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+    final Finder smallerIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Smaller Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+
+    expect(
+      tester.getSize(normalIcon).longestSide,
+      greaterThan(tester.getSize(smallerIcon).longestSide),
+    );
+  });
+
+  testWidgets('prefixIcons are placed left of hintText', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.PrefixIconConstraintsExampleApp(),
+    );
+
+    final Finder normalIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Normal Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+    final Finder smallerIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Smaller Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+
+    expect(
+      tester.getCenter(find.text('Normal Icon Constraints')).dx,
+      greaterThan(tester.getCenter(normalIcon).dx),
+    );
+    expect(
+      tester.getCenter(find.text('Smaller Icon Constraints')).dx,
+      greaterThan(tester.getCenter(smallerIcon).dx),
+    );
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.suffix_icon_constraints.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.suffix_icon_constraints.0_test.dart
new file mode 100644
index 00000000000..0a4c09a1782
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.suffix_icon_constraints.0_test.dart
@@ -0,0 +1,69 @@
+// 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/input_decorator/input_decoration.suffix_icon_constraints.0.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('Shows two TextFields decorated with suffix icon sizes matching their hint text', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.SuffixIconConstraintsExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextField), findsNWidgets(2));
+    expect(find.byIcon(Icons.search), findsNWidgets(2));
+    expect(find.text('Normal Icon Constraints'), findsOneWidget);
+    expect(find.text('Smaller Icon Constraints'), findsOneWidget);
+
+    final Finder normalIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Normal Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+    final Finder smallerIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Smaller Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+
+    expect(tester.getSize(normalIcon).longestSide,
+      greaterThan(tester.getSize(smallerIcon).longestSide));
+  });
+
+  testWidgets('suffixIcons are placed right of hintText', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.SuffixIconConstraintsExampleApp(),
+    );
+
+    final Finder normalIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Normal Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+    final Finder smallerIcon = find.descendant(
+      of: find.ancestor(
+        of: find.text('Smaller Icon Constraints'),
+        matching: find.byType(TextField),
+      ),
+      matching: find.byIcon(Icons.search),
+    );
+
+    expect(
+      tester.getCenter(find.text('Normal Icon Constraints')).dx,
+      lessThan(tester.getCenter(normalIcon).dx),
+    );
+    expect(
+      tester.getCenter(find.text('Smaller Icon Constraints')).dx,
+      lessThan(tester.getCenter(smallerIcon).dx),
+    );
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.widget_state.0_test.dart b/examples/api/test/material/input_decorator/input_decoration.widget_state.0_test.dart
new file mode 100644
index 00000000000..c1efad4151e
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.widget_state.0_test.dart
@@ -0,0 +1,27 @@
+// 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/input_decorator/input_decoration.widget_state.0.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('TextFormField updates decorations depending on state', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.MaterialStateExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextFormField), findsOneWidget);
+    expect(find.text('abc'), findsOneWidget);
+    expect(find.byIcon(Icons.person), findsOneWidget);
+
+    expect(
+      tester.widget<TextField>(find.byType(TextField)).decoration?.prefixIconColor,
+      isA<WidgetStateColor>()
+        .having((WidgetStateColor color) => color.resolve(<WidgetState>{}), 'default', Colors.grey)
+        .having((WidgetStateColor color) => color.resolve(<WidgetState>{WidgetState.focused}), 'focused', Colors.green),
+    );
+  });
+}
diff --git a/examples/api/test/material/input_decorator/input_decoration.widget_state.1_test.dart b/examples/api/test/material/input_decorator/input_decoration.widget_state.1_test.dart
new file mode 100644
index 00000000000..20a20ca8f33
--- /dev/null
+++ b/examples/api/test/material/input_decorator/input_decoration.widget_state.1_test.dart
@@ -0,0 +1,40 @@
+// 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/input_decorator/input_decoration.widget_state.1.dart' as example;
+import 'package:flutter_test/flutter_test.dart';
+
+void main() {
+  testWidgets('TextFormField updates decorations depending on state', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.MaterialStateExampleApp(),
+    );
+    expect(find.text('InputDecoration Sample'), findsOneWidget);
+
+    expect(find.byType(TextFormField), findsOneWidget);
+    expect(find.text('example.com'), findsOneWidget);
+    expect(find.byIcon(Icons.web), findsOneWidget);
+
+    expect(
+      tester.widget<TextField>(find.byType(TextField)).decoration?.prefixIconColor,
+      isA<WidgetStateColor>()
+        .having((WidgetStateColor color) => color.resolve(<WidgetState>{}), 'default', Colors.grey)
+        .having((WidgetStateColor color) => color.resolve(<WidgetState>{WidgetState.focused}), 'focused', Colors.blue)
+        .having((WidgetStateColor color) => color.resolve(<WidgetState>{WidgetState.error}), 'error', Colors.red)
+        .having((WidgetStateColor color) => color.resolve(<WidgetState>{WidgetState.error, WidgetState.focused}), 'error', Colors.red),
+    );
+  });
+
+  testWidgets('Validates field input', (WidgetTester tester) async {
+    await tester.pumpWidget(
+      const example.MaterialStateExampleApp(),
+    );
+
+    expect(find.text('No .com tld'), findsNothing);
+    await tester.enterText(find.byType(TextFormField), 'noUrl');
+    await tester.pump();
+    expect(find.text('No .com tld'), findsOneWidget);
+  });
+}
diff --git a/packages/flutter/lib/src/material/input_decorator.dart b/packages/flutter/lib/src/material/input_decorator.dart
index ad56f3e3ada..05a7ad38774 100644
--- a/packages/flutter/lib/src/material/input_decorator.dart
+++ b/packages/flutter/lib/src/material/input_decorator.dart
@@ -2517,10 +2517,9 @@ class _InputDecoratorState extends State<InputDecorator> with TickerProviderStat
 ///
 /// {@tool dartpad}
 /// This sample shows how to style a `TextField` with a prefixIcon that changes color
-/// based on the `MaterialState`. The color defaults to gray, be blue while focused
-/// and red if in an error state.
+/// based on the `MaterialState`. The color defaults to gray and is green while focused.
 ///
-/// ** See code in examples/api/lib/material/input_decorator/input_decoration.material_state.0.dart **
+/// ** See code in examples/api/lib/material/input_decorator/input_decoration.widget_state.0.dart **
 /// {@end-tool}
 ///
 /// {@tool dartpad}
@@ -2528,7 +2527,7 @@ class _InputDecoratorState extends State<InputDecorator> with TickerProviderStat
 /// based on the `MaterialState` through the use of `ThemeData`. The color defaults
 /// to gray, be blue while focused and red if in an error state.
 ///
-/// ** See code in examples/api/lib/material/input_decorator/input_decoration.material_state.1.dart **
+/// ** See code in examples/api/lib/material/input_decorator/input_decoration.widget_state.1.dart **
 /// {@end-tool}
 ///
 /// See also: