diff --git a/lib/main.dart b/lib/main.dart
index d6f3330..953723d 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,5 +1,5 @@
 import 'package:cabo_counter/data/game_session.dart';
-import 'package:cabo_counter/utility/apptheme.dart';
+import 'package:cabo_counter/utility/custom_theme.dart';
 import 'package:cabo_counter/utility/globals.dart';
 import 'package:cabo_counter/utility/local_storage_service.dart';
 import 'package:cabo_counter/views/tab_view.dart';
@@ -81,10 +81,10 @@ class _AppState extends State<App> with WidgetsBindingObserver {
     return CupertinoApp(
       theme: CupertinoThemeData(
         brightness: Brightness.dark,
-        primaryColor: AppTheme.primaryColor,
-        scaffoldBackgroundColor: AppTheme.backgroundColor,
+        primaryColor: CustomTheme.primaryColor,
+        scaffoldBackgroundColor: CustomTheme.backgroundColor,
         textTheme: CupertinoTextThemeData(
-          primaryColor: AppTheme.primaryColor,
+          primaryColor: CustomTheme.primaryColor,
         ),
       ),
       debugShowCheckedModeBanner: false,
diff --git a/lib/utility/apptheme.dart b/lib/utility/custom_theme.dart
similarity index 97%
rename from lib/utility/apptheme.dart
rename to lib/utility/custom_theme.dart
index ebbbab6..225d452 100644
--- a/lib/utility/apptheme.dart
+++ b/lib/utility/custom_theme.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/cupertino.dart';
 
-class AppTheme {
+class CustomTheme {
   static Color white = CupertinoColors.white;
   static Color primaryColor = CupertinoColors.systemGreen;
   static Color backgroundColor = const Color(0xFF101010);
diff --git a/lib/views/active_game_view.dart b/lib/views/active_game_view.dart
index b1dc0eb..659f2a8 100644
--- a/lib/views/active_game_view.dart
+++ b/lib/views/active_game_view.dart
@@ -1,5 +1,5 @@
 import 'package:cabo_counter/data/game_session.dart';
-import 'package:cabo_counter/utility/apptheme.dart';
+import 'package:cabo_counter/utility/custom_theme.dart';
 import 'package:cabo_counter/views/round_view.dart';
 import 'package:flutter/cupertino.dart';
 
@@ -28,7 +28,7 @@ class _ActiveGameViewState extends State<ActiveGameView> {
               padding: const EdgeInsets.fromLTRB(10, 10, 0, 0),
               child: Text(
                 'Spieler:innen',
-                style: AppTheme.createGameTitle,
+                style: CustomTheme.createGameTitle,
               ),
             ),
             ListView.builder(
@@ -61,7 +61,7 @@ class _ActiveGameViewState extends State<ActiveGameView> {
               padding: const EdgeInsets.fromLTRB(10, 10, 0, 0),
               child: Text(
                 'Runden',
-                style: AppTheme.createGameTitle,
+                style: CustomTheme.createGameTitle,
               ),
             ),
             ListView.builder(
diff --git a/lib/views/create_game_view.dart b/lib/views/create_game_view.dart
index e07685a..4c3e49f 100644
--- a/lib/views/create_game_view.dart
+++ b/lib/views/create_game_view.dart
@@ -1,5 +1,5 @@
 import 'package:cabo_counter/data/game_session.dart';
-import 'package:cabo_counter/utility/apptheme.dart';
+import 'package:cabo_counter/utility/custom_theme.dart';
 import 'package:cabo_counter/utility/globals.dart';
 import 'package:cabo_counter/utility/local_storage_service.dart';
 import 'package:cabo_counter/views/active_game_view.dart';
@@ -44,7 +44,7 @@ class _CreateGameState extends State<CreateGame> {
               padding: const EdgeInsets.fromLTRB(10, 10, 0, 0),
               child: Text(
                 'Spiel',
-                style: AppTheme.createGameTitle,
+                style: CustomTheme.createGameTitle,
               ),
             ),
             Padding(
@@ -98,7 +98,7 @@ class _CreateGameState extends State<CreateGame> {
               padding: const EdgeInsets.fromLTRB(10, 10, 0, 0),
               child: Text(
                 'Spieler:innen',
-                style: AppTheme.createGameTitle,
+                style: CustomTheme.createGameTitle,
               ),
             ),
             Expanded(
diff --git a/lib/views/main_menu_view.dart b/lib/views/main_menu_view.dart
index 2a9d3e3..2b5afd1 100644
--- a/lib/views/main_menu_view.dart
+++ b/lib/views/main_menu_view.dart
@@ -1,4 +1,4 @@
-import 'package:cabo_counter/utility/apptheme.dart';
+import 'package:cabo_counter/utility/custom_theme.dart';
 import 'package:cabo_counter/utility/globals.dart';
 import 'package:cabo_counter/utility/local_storage_service.dart';
 import 'package:cabo_counter/views/active_game_view.dart';
@@ -69,7 +69,7 @@ class _MainMenuViewState extends State<MainMenuView> {
                       child: Icon(
                         CupertinoIcons.plus,
                         size: 60,
-                        color: AppTheme.primaryColor,
+                        color: CustomTheme.primaryColor,
                       ),
                     )),
                     const SizedBox(height: 10), // Abstand von oben
diff --git a/lib/views/mode_selection_view.dart b/lib/views/mode_selection_view.dart
index 7b55b30..5dd8010 100644
--- a/lib/views/mode_selection_view.dart
+++ b/lib/views/mode_selection_view.dart
@@ -1,4 +1,4 @@
-import 'package:cabo_counter/utility/apptheme.dart';
+import 'package:cabo_counter/utility/custom_theme.dart';
 import 'package:flutter/cupertino.dart';
 
 class ModeSelectionMenu extends StatelessWidget {
@@ -15,10 +15,10 @@ class ModeSelectionMenu extends StatelessWidget {
           Padding(
             padding: const EdgeInsets.fromLTRB(0, 16, 0, 0),
             child: CupertinoListTile(
-              title: Text('101 Punkte', style: AppTheme.modeTitle),
+              title: Text('101 Punkte', style: CustomTheme.modeTitle),
               subtitle: const Text(
                 'Es wird solange gespielt, bis einer Spieler mehr als 100 Punkte erreicht',
-                style: AppTheme.modeDescription,
+                style: CustomTheme.modeDescription,
                 maxLines: 3,
               ),
               onTap: () {
@@ -29,11 +29,11 @@ class ModeSelectionMenu extends StatelessWidget {
           Padding(
             padding: const EdgeInsets.symmetric(vertical: 16.0),
             child: CupertinoListTile(
-              title: Text('Unbegrenzt', style: AppTheme.modeTitle),
+              title: Text('Unbegrenzt', style: CustomTheme.modeTitle),
               subtitle: const Text(
                 'Dem Spiel sind keine Grenzen gesetzt. Es wird so lange '
                 'gespielt, bis Ihr keine Lust mehr habt.',
-                style: AppTheme.modeDescription,
+                style: CustomTheme.modeDescription,
                 maxLines: 3,
               ),
               onTap: () {
diff --git a/lib/views/round_view.dart b/lib/views/round_view.dart
index 0949037..7e5ea96 100644
--- a/lib/views/round_view.dart
+++ b/lib/views/round_view.dart
@@ -1,5 +1,5 @@
 import 'package:cabo_counter/data/game_session.dart';
-import 'package:cabo_counter/utility/apptheme.dart';
+import 'package:cabo_counter/utility/custom_theme.dart';
 import 'package:cabo_counter/utility/local_storage_service.dart';
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/services.dart';
@@ -90,7 +90,7 @@ class _RoundViewState extends State<RoundView> {
                   children: [
                     const SizedBox(height: 40),
                     Text('Runde ${widget.roundNumber}',
-                        style: AppTheme.roundTitle),
+                        style: CustomTheme.roundTitle),
                     const SizedBox(height: 10),
                     const Text(
                       'Wer hat CABO gesagt?',
@@ -105,8 +105,8 @@ class _RoundViewState extends State<RoundView> {
                       child: SizedBox(
                         height: 40,
                         child: CupertinoSegmentedControl<int>(
-                          unselectedColor: AppTheme.backgroundTintColor,
-                          selectedColor: AppTheme.primaryColor,
+                          unselectedColor: CustomTheme.backgroundTintColor,
+                          selectedColor: CustomTheme.primaryColor,
                           groupValue: _caboPlayerIndex,
                           children: Map.fromEntries(widget.gameSession.players
                               .asMap()
@@ -271,7 +271,7 @@ class _RoundViewState extends State<RoundView> {
                 return Container(
                   height: 80,
                   padding: const EdgeInsets.only(bottom: 20),
-                  color: AppTheme.backgroundTintColor,
+                  color: CustomTheme.backgroundTintColor,
                   child: Row(
                     mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                     children: [
diff --git a/lib/views/tab_view.dart b/lib/views/tab_view.dart
index 71e39e9..a0b5821 100644
--- a/lib/views/tab_view.dart
+++ b/lib/views/tab_view.dart
@@ -1,4 +1,4 @@
-import 'package:cabo_counter/utility/apptheme.dart';
+import 'package:cabo_counter/utility/custom_theme.dart';
 import 'package:cabo_counter/views/information_view.dart';
 import 'package:cabo_counter/views/main_menu_view.dart';
 import 'package:flutter/cupertino.dart';
@@ -16,7 +16,7 @@ class _TabViewState extends State<TabView> {
   Widget build(BuildContext context) {
     return CupertinoTabScaffold(
       tabBar: CupertinoTabBar(
-          backgroundColor: AppTheme.backgroundTintColor,
+          backgroundColor: CustomTheme.backgroundTintColor,
           iconSize: 27,
           height: 55,
           items: const <BottomNavigationBarItem>[