diff --git a/android/gradle.properties b/android/gradle.properties
index 24add27a90a4accaf6a1ee28ec651d0d6bda4f8e..eeed3ef5a3d04530f5624cce71b2a57976938aed 100644
--- a/android/gradle.properties
+++ b/android/gradle.properties
@@ -1,5 +1,5 @@
 org.gradle.jvmargs=-Xmx1536M
 android.useAndroidX=true
 android.enableJetifier=true
-app.versionName=0.0.20
-app.versionCode=20
+app.versionName=0.0.21
+app.versionCode=21
diff --git a/assets/translations/en.json b/assets/translations/en.json
index a170877f82723392a7e4c0b6e9d731166207600d..867a99439eb21af93fbddae51621e131d25c8aa5 100644
--- a/assets/translations/en.json
+++ b/assets/translations/en.json
@@ -10,6 +10,7 @@
   "bottom_nav_settings": "Settings",
 
   "settings_title": "Settings",
+  "settings_label_theme": "Theme mode",
   "settings_title_game": "Game settings",
   "settings_label_game_timer_value": "Timer value: ",
 
diff --git a/assets/translations/fr.json b/assets/translations/fr.json
index 05bbe109fdb1c472c5c7387a974e3e8ed48d9bb3..c481788e703609e5007305c9051e498b7b15fef1 100644
--- a/assets/translations/fr.json
+++ b/assets/translations/fr.json
@@ -10,6 +10,7 @@
   "bottom_nav_settings": "Réglages",
 
   "settings_title": "Réglages",
+  "settings_label_theme": "Thème de couleurs",
   "settings_title_game": "Paramètres du jeu",
   "settings_label_game_timer_value": "Durée du chrono : ",
 
diff --git a/fastlane/metadata/android/en-US/changelogs/21.txt b/fastlane/metadata/android/en-US/changelogs/21.txt
new file mode 100644
index 0000000000000000000000000000000000000000..e466561363a0fabd2043c6d7903c4280d6b7b3a8
--- /dev/null
+++ b/fastlane/metadata/android/en-US/changelogs/21.txt
@@ -0,0 +1 @@
+Add light/dark theme setting.
diff --git a/fastlane/metadata/android/fr-FR/changelogs/21.txt b/fastlane/metadata/android/fr-FR/changelogs/21.txt
new file mode 100644
index 0000000000000000000000000000000000000000..4a93af73582a415da90a3a845509c88ff0682057
--- /dev/null
+++ b/fastlane/metadata/android/fr-FR/changelogs/21.txt
@@ -0,0 +1 @@
+Ajout d'un réglage de thème clair/sombre.
diff --git a/lib/cubit/theme_cubit.dart b/lib/cubit/theme_cubit.dart
new file mode 100644
index 0000000000000000000000000000000000000000..b793e895dbb0c672d451cd403e0036c3d9ac9b42
--- /dev/null
+++ b/lib/cubit/theme_cubit.dart
@@ -0,0 +1,31 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter/material.dart';
+import 'package:hydrated_bloc/hydrated_bloc.dart';
+
+part 'theme_state.dart';
+
+class ThemeCubit extends HydratedCubit<ThemeModeState> {
+  ThemeCubit() : super(const ThemeModeState());
+
+  void getTheme(ThemeModeState state) {
+    emit(state);
+  }
+
+  @override
+  ThemeModeState? fromJson(Map<String, dynamic> json) {
+    switch (json['themeMode']) {
+      case 'ThemeMode.dark':
+        return const ThemeModeState(themeMode: ThemeMode.dark);
+      case 'ThemeMode.light':
+        return const ThemeModeState(themeMode: ThemeMode.light);
+      case 'ThemeMode.system':
+      default:
+        return const ThemeModeState(themeMode: ThemeMode.system);
+    }
+  }
+
+  @override
+  Map<String, String>? toJson(ThemeModeState state) {
+    return <String, String>{'themeMode': state.themeMode.toString()};
+  }
+}
diff --git a/lib/cubit/theme_state.dart b/lib/cubit/theme_state.dart
new file mode 100644
index 0000000000000000000000000000000000000000..e479a50f12fe72a35a1fd1722ff72afbb692a136
--- /dev/null
+++ b/lib/cubit/theme_state.dart
@@ -0,0 +1,15 @@
+part of 'theme_cubit.dart';
+
+@immutable
+class ThemeModeState extends Equatable {
+  const ThemeModeState({
+    this.themeMode,
+  });
+
+  final ThemeMode? themeMode;
+
+  @override
+  List<Object?> get props => <Object?>[
+        themeMode,
+      ];
+}
diff --git a/lib/main.dart b/lib/main.dart
index 04f395244869b5cf92e405317da2b66c8d30f2c9..78da985f11b9c86e0ff45fae91b2aaec7eed261d 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -11,6 +11,7 @@ import 'package:twister/config/theme.dart';
 import 'package:twister/cubit/bottom_nav_cubit.dart';
 import 'package:twister/cubit/game_cubit.dart';
 import 'package:twister/cubit/settings_cubit.dart';
+import 'package:twister/cubit/theme_cubit.dart';
 import 'package:twister/ui/skeleton.dart';
 
 void main() async {
@@ -47,18 +48,26 @@ class MyApp extends StatelessWidget {
         BlocProvider<BottomNavCubit>(create: (context) => BottomNavCubit()),
         BlocProvider<GameCubit>(create: (context) => GameCubit()),
         BlocProvider<SettingsCubit>(create: (context) => SettingsCubit()),
+        BlocProvider<ThemeCubit>(create: (context) => ThemeCubit()),
       ],
-      child: MaterialApp(
-        title: 'Twister',
-        theme: appTheme,
-        home: const SkeletonScreen(),
+      child: BlocBuilder<ThemeCubit, ThemeModeState>(
+          builder: (BuildContext context, ThemeModeState state) {
+        return MaterialApp(
+          title: 'Twister',
+          home: const SkeletonScreen(),
 
-        // Localization stuff
-        localizationsDelegates: context.localizationDelegates,
-        supportedLocales: context.supportedLocales,
-        locale: context.locale,
-        debugShowCheckedModeBanner: false,
-      ),
+          // Theme stuff
+          theme: lightTheme,
+          darkTheme: darkTheme,
+          themeMode: state.themeMode,
+
+          // Localization stuff
+          localizationsDelegates: context.localizationDelegates,
+          supportedLocales: context.supportedLocales,
+          locale: context.locale,
+          debugShowCheckedModeBanner: false,
+        );
+      }),
     );
   }
 }
diff --git a/lib/ui/widgets/settings_form.dart b/lib/ui/widgets/settings_form.dart
index 3bc096c14ed9eb7dc63c7f04beb4eae16b315afb..81fac9e07e4174ad613b3d84e0047f6aaead6ba4 100644
--- a/lib/ui/widgets/settings_form.dart
+++ b/lib/ui/widgets/settings_form.dart
@@ -1,10 +1,12 @@
 import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:unicons/unicons.dart';
 
 import 'package:twister/config/default_settings.dart';
 import 'package:twister/cubit/settings_cubit.dart';
 import 'package:twister/ui/widgets/app_titles.dart';
+import 'package:twister/ui/widgets/theme_card.dart';
 
 class SettingsForm extends StatefulWidget {
   const SettingsForm({super.key});
@@ -49,6 +51,36 @@ class _SettingsFormState extends State<SettingsForm> {
       mainAxisSize: MainAxisSize.max,
       children: <Widget>[
         const SizedBox(height: 8),
+
+        // Light/dark theme
+        Row(
+          mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          crossAxisAlignment: CrossAxisAlignment.center,
+          children: <Widget>[
+            const Text('settings_label_theme').tr(),
+            const Row(
+              mainAxisAlignment: MainAxisAlignment.end,
+              crossAxisAlignment: CrossAxisAlignment.center,
+              children: [
+                ThemeCard(
+                  mode: ThemeMode.system,
+                  icon: UniconsLine.cog,
+                ),
+                ThemeCard(
+                  mode: ThemeMode.light,
+                  icon: UniconsLine.sun,
+                ),
+                ThemeCard(
+                  mode: ThemeMode.dark,
+                  icon: UniconsLine.moon,
+                )
+              ],
+            ),
+          ],
+        ),
+
+        const SizedBox(height: 16),
+
         AppTitle2(text: tr('settings_title_game')),
 
         // Timer value
diff --git a/lib/ui/widgets/theme_card.dart b/lib/ui/widgets/theme_card.dart
new file mode 100644
index 0000000000000000000000000000000000000000..bd935ab73dd26ff465d628f7fb82f3b1bdbad85c
--- /dev/null
+++ b/lib/ui/widgets/theme_card.dart
@@ -0,0 +1,45 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+
+import 'package:twister/cubit/theme_cubit.dart';
+
+class ThemeCard extends StatelessWidget {
+  const ThemeCard({
+    super.key,
+    required this.mode,
+    required this.icon,
+  });
+
+  final IconData icon;
+  final ThemeMode mode;
+
+  @override
+  Widget build(BuildContext context) {
+    return BlocBuilder<ThemeCubit, ThemeModeState>(
+        builder: (BuildContext context, ThemeModeState state) {
+      return Card(
+        elevation: 2,
+        shadowColor: Theme.of(context).colorScheme.shadow,
+        color: state.themeMode == mode
+            ? Theme.of(context).colorScheme.primary
+            : Theme.of(context).colorScheme.surface,
+        shape: const RoundedRectangleBorder(
+          borderRadius: BorderRadius.all(Radius.circular(12)),
+        ),
+        margin: const EdgeInsets.all(5),
+        child: InkWell(
+          onTap: () => BlocProvider.of<ThemeCubit>(context).getTheme(
+            ThemeModeState(themeMode: mode),
+          ),
+          borderRadius: const BorderRadius.all(Radius.circular(12)),
+          child: Icon(
+            icon,
+            size: 32,
+            color:
+                state.themeMode != mode ? Theme.of(context).colorScheme.primary : Colors.white,
+          ),
+        ),
+      );
+    });
+  }
+}
diff --git a/pubspec.yaml b/pubspec.yaml
index a7661d9cac5042925cee0c2ec1bdef92da8bc120..e6a8bc41e5a09e4432ab7c7e9a1dce819d52aef7 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -3,7 +3,7 @@ description: twister game companion
 
 publish_to: 'none'
 
-version: 0.0.20+20
+version: 0.0.21+21
 
 environment:
   sdk: '^3.0.0'