test(ui): 更新主题导航与布局断言

test/home/home_nav_ui_test.dart

@@ -98,22 +98,12 @@ void main() {
       tester.getTopRight(walletEntry).dx,
       closeTo(390 - AppDimens.feedPageHorizontal, 0.1),
     );
-    final crown = tester.widget<Icon>(
-      find.descendant(
-        of: vipEntry,
-        matching: find.byIcon(Icons.workspace_premium_outlined),
-      ),
-    );
-    final gift = tester.widget<Icon>(
-      find.descendant(
-        of: walletEntry,
-        matching: find.byIcon(Icons.card_giftcard_rounded),
-      ),
-    );
-    expect(crown.size, AppDimens.homeActionIcon);
-    expect(crown.color, AppColors.homeCrownGold);
-    expect(gift.size, AppDimens.homeActionIcon);
-    expect(gift.color, AppColors.homeGiftPink);
+    expect(crownImage.width, AppDimens.homeActionIcon);
+    expect(crownImage.height, AppDimens.homeActionIcon);
+    expect(crownImage.fit, BoxFit.contain);
+    expect(giftImage.width, AppDimens.homeActionIcon);
+    expect(giftImage.height, AppDimens.homeActionIcon);
+    expect(giftImage.fit, BoxFit.contain);
     expect(
       tester
           .widget<Material>(