Repository: flutter/flutter
File: packages/flutter/test/widgets/widgets_app_tester.dart (Dart)

Code before:
  /// See also:
  ///
  ///  * [WidgetsApp.home], the equivalent property in the full app widget.
  final Widget? home;

  /// The application's top-level routing table.
  ///
  /// Maps route names to widget builders. When navigating to a named route,
  /// the corresponding builder is called to create the route's content.
  ///
  /// In tests, routes are built using [pageRouteBuilder], which defaults to
  /// zero-duration transitions for instant navigation without waiting for
  /// animations.
  ///
  /// Defaults to an empty map.
  ///
  /// See also:
  ///
  ///  * [WidgetsApp.routes], the equivalent property in the full app widget.
  final Map<String, WidgetBuilder> routes;

  /// The primary color to use for the application in the operating system
  /// interface.
  ///
  /// In tests, this is typically not relevant as OS-level features are not
  /// exercised. Defaults to white.
  ///
  /// See also:
  ///
  ///  * [WidgetsApp.color], the equivalent property in the full app widget.
  final Color color;

  /// A function that creates page routes for named navigation.
  ///
  /// Defaults to a [PageRouteBuilder] with no transition animation, allowing
  /// instant navigation without calling [WidgetTester.pumpAndSettle].
  ///
  /// Override this to customize route behavior or test specific transitions:
  ///
  /// ```dart
  /// TestWidgetsApp(
  ///   pageRouteBuilder: <T>(settings, builder) {
  ///     return PageRouteBuilder<T>(
  ///       settings: settings,
  ///       transitionDuration: const Duration(milliseconds: 300),
  ///       pageBuilder: (context, _, __) => builder(context),
  ///       transitionsBuilder: (_, animation, __, child) {
  ///         return FadeTransition(opacity: animation, child: child);
  ///       },
  ///     );
  ///   },

Review comment (suggestion):
```suggestion
  /// This is typically unused in tests as OS-level features are not
  /// exercised. 
  ///
  /// Defaults to white.
```

Code after:
  /// See also:
  ///
  ///  * [WidgetsApp.home], the equivalent property in [WidgetsApp].
  final Widget? home;

  /// The application's top-level routing table.
  ///
  /// Maps route names to widget builders. When navigating to a named route,
  /// the corresponding builder is called to create the route's content.
  ///
  /// In tests, routes are built using [pageRouteBuilder], which defaults to
  /// zero-duration transitions for instant navigation without waiting for
  /// animations.
  ///
  /// Defaults to an empty map.
  ///
  /// See also:
  ///
  ///  * [WidgetsApp.routes], the equivalent property in [WidgetsApp].
  final Map<String, WidgetBuilder> routes;

  /// The primary color to use for the application in the operating system
  /// interface.
  ///
  /// This is typically unused in tests as OS-level features are not
  /// exercised.
  ///
  /// Defaults to white.
  ///
  /// See also:
  ///
  ///  * [WidgetsApp.color], the equivalent property in [WidgetsApp].
  final Color color;

  /// A function that creates page routes for named navigation.
  ///
  /// Defaults to a [PageRouteBuilder] with no transition animation, allowing
  /// instant navigation without calling [WidgetTester.pumpAndSettle].
  ///
  /// Override this to customize route behavior or test specific transitions:
  ///
  /// ```dart
  /// TestWidgetsApp(
  ///   pageRouteBuilder: <T>(settings, builder) {
  ///     return PageRouteBuilder<T>(
  ///       settings: settings,
  ///       transitionDuration: const Duration(milliseconds: 300),
  ///       pageBuilder: (context, _, __) => builder(context),
  ///       transitionsBuilder: (_, animation, __, child) {
  ///         return FadeTransition(opacity: animation, child: child);
  ///       },