merge: 合并 K31-C 频道选中态主题色

lib/pages/home/home_browse_view.dart

@@ -255,12 +255,10 @@ class _HomeBrowseViewState extends State<HomeBrowseView> {
     required bool selected,
     required bool overImage,
   }) {
-    final color = overImage
-        ? (selected ? Colors.white : Colors.white70)
-        : (selected ? AppColors.onSurface : AppColors.muted);
-    final underlineColor = selected
-        ? (overImage ? Colors.white : AppColors.blue)
-        : Colors.transparent;
+    final color = selected
+        ? AppColors.blue
+        : (overImage ? Colors.white70 : AppColors.muted);
+    final underlineColor = selected ? AppColors.blue : Colors.transparent;
     return Semantics(
       button: true,
       selected: selected,

test/home/k28_a_navigation_test.dart

@@ -8,6 +8,7 @@ import 'package:fruitshorts/core/data/models/watch_progress.dart';
 import 'package:fruitshorts/core/data/repositories/favorite_repository.dart';
 import 'package:fruitshorts/core/data/repositories/playback_repository.dart';
 import 'package:fruitshorts/core/data/repositories/watch_history_repository.dart';
+import 'package:fruitshorts/core/theme/app_colors.dart';
 import 'package:fruitshorts/pages/player/player_view.dart';
 import 'package:shared_preferences_platform_interface/in_memory_shared_preferences_async.dart';
 import 'package:shared_preferences_platform_interface/shared_preferences_async_platform_interface.dart';
@@ -53,19 +54,21 @@ void main() {
   ) async {
     await _pumpApp(tester);
 
-    // 悬浮在轮播图上：选中白色下划线，未选中透明占位。
-    expect(_underlineColor(tester, 'hot'), Colors.white);
+    // 选中态用主题色，未选中保留白色文字与透明占位。
+    expect(_underlineColor(tester, 'hot'), AppColors.blue);
     expect(_underlineColor(tester, 'free'), Colors.transparent);
     expect(_labelStyle(tester, 'hot').fontWeight, FontWeight.w800);
     expect(_labelStyle(tester, 'free').fontWeight, FontWeight.w600);
-    expect(_labelStyle(tester, 'hot').color, Colors.white);
+    expect(_labelStyle(tester, 'hot').color, AppColors.blue);
     expect(_labelStyle(tester, 'free').color, Colors.white70);
 
     await tester.tap(find.byKey(const Key('home-channel-free')));
     await tester.pumpAndSettle();
 
     expect(_underlineColor(tester, 'hot'), Colors.transparent);
-    expect(_underlineColor(tester, 'free'), Colors.white);
+    expect(_underlineColor(tester, 'free'), AppColors.blue);
+    expect(_labelStyle(tester, 'free').color, AppColors.blue);
+    expect(_labelStyle(tester, 'hot').color, Colors.white70);
     expect(_labelStyle(tester, 'free').fontWeight, FontWeight.w800);
   });