diff --git a/app/lib/main.dart b/app/lib/main.dart
index 20f5b51..0df924e 100644
--- a/app/lib/main.dart
+++ b/app/lib/main.dart
@@ -14,6 +14,8 @@ import 'pages/home.dart';
 
 Future<void> main() async {
   WidgetsFlutterBinding.ensureInitialized();
+  EasyLocalization.logger.enableLevels = [];
+  await EasyLocalization.ensureInitialized();
   await initConfigs();
   runApp(EasyLocalization(
     supportedLocales: [
@@ -47,6 +49,9 @@ class MyApp extends StatelessWidget {
         return MaterialApp(
           title: 'Flutter Demo',
           theme: showDarkMode ? darkTheme : lightTheme,
+          localizationsDelegates: context.localizationDelegates,
+          supportedLocales: context.supportedLocales,
+          locale: context.locale,
           home: AnimatedCrossFade(
             crossFadeState: isDarkMode != null ? CrossFadeState.showSecond : CrossFadeState.showFirst,
             alignment: Alignment.center,
diff --git a/app/lib/pages/home.dart b/app/lib/pages/home.dart
index 53368dc..586af74 100644
--- a/app/lib/pages/home.dart
+++ b/app/lib/pages/home.dart
@@ -23,7 +23,7 @@ class _HomePageState extends State<HomePage> {
             ],
           ),
           SizedBox(
-            height: 32,
+            height: 36,
             child: Footer(),
           ),
         ],
diff --git a/app/lib/widgets/footer.dart b/app/lib/widgets/footer.dart
index 2b0f641..d61bb67 100644
--- a/app/lib/widgets/footer.dart
+++ b/app/lib/widgets/footer.dart
@@ -1,5 +1,6 @@
 import 'package:dde_gesture_manager/models/configs.dart';
 import 'package:dde_gesture_manager/models/configs.provider.dart';
+import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:dde_gesture_manager/extensions.dart';
 
@@ -13,28 +14,47 @@ class Footer extends StatefulWidget {
 class _FooterState extends State<Footer> {
   @override
   Widget build(BuildContext context) {
+    var _brightnessMode = context.watch<ConfigsProvider>().brightnessMode;
     return Container(
       color: context.t.backgroundColor,
       child: Padding(
         padding: EdgeInsets.symmetric(horizontal: 12),
         child: Row(
           mainAxisAlignment: MainAxisAlignment.spaceBetween,
+          crossAxisAlignment: CrossAxisAlignment.center,
           children: [
             Container(),
             PopupMenuButton(
-              initialValue: context.watch<ConfigsProvider>().brightnessMode,
-              child: Icon(Icons.brightness_4_outlined),
+              initialValue: _brightnessMode,
+              icon: Icon(Icons.brightness_4_outlined),
+              tooltip: LocaleKeys.theme_label.tr(),
               itemBuilder: (BuildContext context) => [
                 PopupMenuItem<BrightnessMode>(
-                  child: Text(LocaleKeys.theme_label).tr(),
+                  child: ListTile(
+                    leading: Visibility(
+                      child: Icon(CupertinoIcons.check_mark),
+                      visible: _brightnessMode == BrightnessMode.system,
+                    ),
+                    title: Text(LocaleKeys.theme_system).tr(),
+                  ),
                   onTap: () => context.read<ConfigsProvider>().setProps(brightnessMode: BrightnessMode.system),
                 ),
                 PopupMenuItem<BrightnessMode>(
-                  child: Text(LocaleKeys.theme_light).tr(),
+                  child: ListTile(
+                      leading: Visibility(
+                        child: Icon(CupertinoIcons.check_mark),
+                        visible: _brightnessMode == BrightnessMode.light,
+                      ),
+                      title: Text(LocaleKeys.theme_light).tr()),
                   onTap: () => context.read<ConfigsProvider>().setProps(brightnessMode: BrightnessMode.light),
                 ),
                 PopupMenuItem<BrightnessMode>(
-                  child: Text(LocaleKeys.theme_dark).tr(),
+                  child: ListTile(
+                      leading: Visibility(
+                        child: Icon(CupertinoIcons.check_mark),
+                        visible: _brightnessMode == BrightnessMode.dark,
+                      ),
+                      title: Text(LocaleKeys.theme_dark).tr()),
                   onTap: () => context.read<ConfigsProvider>().setProps(brightnessMode: BrightnessMode.dark),
                 ),
               ],
diff --git a/app/source_gen.sh b/app/source_gen.sh
new file mode 100644
index 0000000..4ec7e73
--- /dev/null
+++ b/app/source_gen.sh
@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+flutter packages pub get
+flutter packages pub run build_runner build --delete-conflicting-outputs
+flutter pub run easy_localization:generate
+flutter pub run easy_localization:generate -f keys -o locale_keys.g.dart
\ No newline at end of file