[M3] Add ListTile's iconColor property support for icon buttons (#120075)

* add icon button property override

* list tile changes

* add imports

* add newlines

* whitespace

Author: esouthren

packages/flutter/lib/src/material/list_tile.dart

@@ -12,6 +12,8 @@ import 'colors.dart';
 import 'constants.dart';
 import 'debug.dart';
 import 'divider.dart';
+import 'icon_button.dart';
+import 'icon_button_theme.dart';
 import 'ink_decoration.dart';
 import 'ink_well.dart';
 import 'list_tile_theme.dart';
@@ -692,6 +694,9 @@ class ListTile extends StatelessWidget {
       ?? resolveColor(theme.listTileTheme.textColor, theme.listTileTheme.selectedColor, theme.listTileTheme.textColor)
       ?? resolveColor(defaults.textColor, defaults.selectedColor, defaults.textColor, theme.disabledColor);
     final IconThemeData iconThemeData = IconThemeData(color: effectiveIconColor);
+    final IconButtonThemeData iconButtonThemeData = IconButtonThemeData(
+      style: IconButton.styleFrom(foregroundColor: effectiveIconColor),
+    );
 
     TextStyle? leadingAndTrailingStyle;
     if (leading != null || trailing != null) {
@@ -791,21 +796,24 @@ class ListTile extends StatelessWidget {
             minimum: resolvedContentPadding,
             child: IconTheme.merge(
               data: iconThemeData,
-              child: _ListTile(
-                leading: leadingIcon,
-                title: titleText,
-                subtitle: subtitleText,
-                trailing: trailingIcon,
-                isDense: _isDenseLayout(theme, tileTheme),
-                visualDensity: visualDensity ?? tileTheme.visualDensity ?? theme.visualDensity,
-                isThreeLine: isThreeLine,
-                textDirection: textDirection,
-                titleBaselineType: titleStyle.textBaseline ?? defaults.titleTextStyle!.textBaseline!,
-                subtitleBaselineType: subtitleStyle?.textBaseline ?? defaults.subtitleTextStyle!.textBaseline!,
-                horizontalTitleGap: horizontalTitleGap ?? tileTheme.horizontalTitleGap ?? 16,
-                minVerticalPadding: minVerticalPadding ?? tileTheme.minVerticalPadding ?? defaults.minVerticalPadding!,
-                minLeadingWidth: minLeadingWidth ?? tileTheme.minLeadingWidth ?? defaults.minLeadingWidth!,
-                material3: theme.useMaterial3,
+              child: IconButtonTheme(
+                data: iconButtonThemeData,
+                child: _ListTile(
+                  leading: leadingIcon,
+                  title: titleText,
+                  subtitle: subtitleText,
+                  trailing: trailingIcon,
+                  isDense: _isDenseLayout(theme, tileTheme),
+                  visualDensity: visualDensity ?? tileTheme.visualDensity ?? theme.visualDensity,
+                  isThreeLine: isThreeLine,
+                  textDirection: textDirection,
+                  titleBaselineType: titleStyle.textBaseline ?? defaults.titleTextStyle!.textBaseline!,
+                  subtitleBaselineType: subtitleStyle?.textBaseline ?? defaults.subtitleTextStyle!.textBaseline!,
+                  horizontalTitleGap: horizontalTitleGap ?? tileTheme.horizontalTitleGap ?? 16,
+                  minVerticalPadding: minVerticalPadding ?? tileTheme.minVerticalPadding ?? defaults.minVerticalPadding!,
+                  minLeadingWidth: minLeadingWidth ?? tileTheme.minLeadingWidth ?? defaults.minLeadingWidth!,
+                  material3: theme.useMaterial3,
+                ),
               ),
             ),
           ),

packages/flutter/test/material/list_tile_test.dart

@@ -2150,6 +2150,50 @@ void main() {
     expect(iconColor(leadingKey), selectedColor);
   });
 
+  testWidgets('ListTile.iconColor respects iconColor property with icon buttons Material 3 in presence of IconButtonTheme override', (WidgetTester tester) async {
+    const Color iconButtonThemeColor = Colors.blue;
+    const Color listTileIconColor = Colors.green;
+    const Icon leadingIcon = Icon(Icons.favorite);
+    const Icon trailingIcon = Icon(Icons.close);
+
+    Widget buildFrame() {
+      return MaterialApp(
+        theme: ThemeData(
+          useMaterial3: true,
+          iconButtonTheme: IconButtonThemeData(
+            style:  IconButton.styleFrom(
+              foregroundColor: iconButtonThemeColor,
+            ),
+          ),
+        ),
+        home: Material(
+          child: Center(
+            child: Builder(
+              builder: (BuildContext context) {
+                return ListTile(
+                  iconColor: listTileIconColor,
+                  leading: IconButton(icon: leadingIcon, onPressed: () {}),
+                  trailing: IconButton(icon: trailingIcon, onPressed: () {}),
+                );
+              },
+            ),
+          ),
+        ),
+      );
+    }
+
+    TextStyle? getIconStyle(WidgetTester tester, IconData icon) =>
+      tester.widget<RichText>(find.descendant(
+        of: find.byIcon(icon),
+        matching: find.byType(RichText),
+      ),
+    ).text.style;
+
+    await tester.pumpWidget(buildFrame());
+    expect(getIconStyle(tester, leadingIcon.icon!)?.color, listTileIconColor);
+    expect(getIconStyle(tester, trailingIcon.icon!)?.color, listTileIconColor);
+  });
+
   testWidgets('ListTile.dense does not throw assertion', (WidgetTester tester) async {
     // This is a regression test for https://github.com/flutter/flutter/pull/116908