diff --git a/boring_to_beautiful/step_03/lib/src/shared/app.dart b/boring_to_beautiful/step_03/lib/src/shared/app.dart
index 87f9d9bfe0..b8abb1fe7c 100644
--- a/boring_to_beautiful/step_03/lib/src/shared/app.dart
+++ b/boring_to_beautiful/step_03/lib/src/shared/app.dart
@@ -22,6 +22,7 @@ class _MyAppState extends State<MyApp> {
   final settings = ValueNotifier(
     ThemeSettings(sourceColor: Colors.pink, themeMode: ThemeMode.system),
   );
+
   @override
   Widget build(BuildContext context) {
     return BlocProvider<PlaybackBloc>(
@@ -40,18 +41,17 @@ class _MyAppState extends State<MyApp> {
               valueListenable: settings,
               builder: (context, value, _) {
                 final theme = ThemeProvider.of(context);
+
+                // ✅ Modified section — simplified MaterialApp.router version
                 return MaterialApp.router(
                   debugShowCheckedModeBanner: false,
                   title: 'Flutter Demo',
                   theme: theme.light(settings.value.sourceColor),
-                  darkTheme: theme.dark(settings.value.sourceColor),
-                  themeMode: theme.themeMode(),
+                  darkTheme: theme.dark(settings.value.sourceColor), // Add this line
+                  themeMode: theme.themeMode(), // Add this line
                   routeInformationParser: appRouter.routeInformationParser,
                   routeInformationProvider: appRouter.routeInformationProvider,
                   routerDelegate: appRouter.routerDelegate,
-                  builder: (context, child) {
-                    return PlayPauseListener(child: child!);
-                  },
                 );
               },
             ),