Removed RadioListTile accentColor dependency (#76906)

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

@@ -26,11 +26,13 @@ import 'theme_data.dart';
 /// those of the same name on [ListTile].
 ///
 /// The [selected] property on this widget is similar to the [ListTile.selected]
-/// property, but the color used is that described by [activeColor], if any,
-/// defaulting to the accent color of the current [Theme]. No effort is made to
-/// coordinate the [selected] state and the [checked] state; to have the list
-/// tile appear selected when the radio button is the selected radio button, set
-/// [selected] to true when [value] matches [groupValue].
+/// property. This tile's [activeColor] is used for the selected item's text color, or
+/// the theme's [ThemeData.toggleableActiveColor] if [activeColor] is null.
+///
+/// This widget does not coordinate the [selected] state and the
+/// [checked] state; to have the list tile appear selected when the
+/// radio button is the selected radio button, set [selected] to true
+/// when [value] matches [groupValue].
 ///
 /// The radio button is shown on the left by default in left-to-right languages
 /// (i.e. the leading edge). This can be changed using [controlAffinity]. The
@@ -520,7 +522,7 @@ class RadioListTile<T> extends StatelessWidget {
     }
     return MergeSemantics(
       child: ListTileTheme.merge(
-        selectedColor: activeColor ?? Theme.of(context).accentColor,
+        selectedColor: activeColor ?? Theme.of(context).toggleableActiveColor,
         child: ListTile(
           leading: leading,
           title: title,

packages/flutter/test/material/radio_list_tile_test.dart

@@ -707,4 +707,40 @@ void main() {
 
     expect(find.byType(Material), paints..path(color: selectedTileColor));
   });
+
+  testWidgets('RadioListTile selected item text Color', (WidgetTester tester) async {
+    // Regression test for https://github.com/flutter/flutter/pull/76906
+
+    const Color activeColor = Color(0xff00ff00);
+
+    Widget buildFrame({ Color? activeColor, Color? toggleableActiveColor }) {
+      return MaterialApp(
+        theme: ThemeData.light().copyWith(
+          toggleableActiveColor: toggleableActiveColor,
+        ),
+        home: Scaffold(
+          body: Center(
+            child: RadioListTile<bool>(
+              activeColor: activeColor,
+              selected: true,
+              title: const Text('title'),
+              value: false,
+              groupValue: true,
+              onChanged: (bool? newValue) { },
+            ),
+          ),
+        ),
+      );
+    }
+
+    Color? textColor(String text) {
+      return tester.renderObject<RenderParagraph>(find.text(text)).text.style?.color;
+    }
+
+    await tester.pumpWidget(buildFrame(toggleableActiveColor: activeColor));
+    expect(textColor('title'), activeColor);
+
+    await tester.pumpWidget(buildFrame(activeColor: activeColor));
+    expect(textColor('title'), activeColor);
+  });
 }