diff --git a/lib/app.dart b/lib/app.dart
index 4a4e417..411170a 100644
--- a/lib/app.dart
+++ b/lib/app.dart
@@ -46,11 +46,11 @@ class _AppState extends State<App> {
       context,
       controller: tabController,
       navBarStyle: NavBarStyle.style6,
-      backgroundColor: Theme.of(context).colorScheme.onSecondary,
+      backgroundColor: Theme.of(context).colorScheme.surface,
       decoration: const NavBarDecoration(
         border: Border.symmetric(vertical: BorderSide.none, horizontal: BorderSide(color: Colors.grey, width: 1))
       ),
-      screenTransitionAnimation: const ScreenTransitionAnimation(animateTabTransition: true, curve: Curves.ease, duration: Duration(milliseconds: 200)),
+      screenTransitionAnimation: const ScreenTransitionAnimation(animateTabTransition: false, curve: Curves.ease, duration: Duration(milliseconds: 200)),
       screens: const [
         Timetable(),
         ChatList(),