diff --git a/assets/translation.json b/assets/translation.json
index 20be28f..796bab9 100644
--- a/assets/translation.json
+++ b/assets/translation.json
@@ -152,7 +152,10 @@
     "Name": "名称",
     "Date": "日期",
     "Date Desc": "日期降序",
-    "Start": "开始"
+    "Start": "开始",
+    "Export App Data": "导出应用数据",
+    "Import App Data": "导入应用数据",
+    "Export": "导出"
   },
   "zh_TW": {
     "Home": "首頁",
@@ -307,6 +310,9 @@
     "Name": "名稱",
     "Date": "日期",
     "Date Desc": "日期降序",
-    "Start": "開始"
+    "Start": "開始",
+    "Export App Data": "匯出應用數據",
+    "Import App Data": "匯入應用數據",
+    "Export": "匯出"
   }
 }
\ No newline at end of file
diff --git a/lib/components/button.dart b/lib/components/button.dart
index 96f7e15..2a1f6e6 100644
--- a/lib/components/button.dart
+++ b/lib/components/button.dart
@@ -156,7 +156,7 @@ class _ButtonState extends State<Button> {
   @override
   Widget build(BuildContext context) {
     var padding = widget.padding ??
-        const EdgeInsets.symmetric(horizontal: 16, vertical: 6);
+        const EdgeInsets.symmetric(horizontal: 16, vertical: 4);
     var width = widget.width;
     if (width != null) {
       width = width - padding.horizontal;
@@ -172,7 +172,7 @@ class _ButtonState extends State<Button> {
       child: DefaultTextStyle(
         style: TextStyle(
           color: textColor,
-          fontSize: 16,
+          fontSize: 14,
         ),
         child: isLoading
             ? CircularProgressIndicator(
@@ -210,11 +210,11 @@ class _ButtonState extends State<Button> {
           decoration: BoxDecoration(
             color: buttonColor,
             borderRadius: BorderRadius.circular(16),
-            boxShadow: (isHover && !isLoading && widget.type == ButtonType.filled)
+            boxShadow: (isHover && !isLoading && (widget.type == ButtonType.filled || widget.type == ButtonType.normal))
                 ? [
                     BoxShadow(
                       color: Colors.black.withOpacity(0.1),
-                      blurRadius: 4,
+                      blurRadius: 2,
                       offset: const Offset(0, 1),
                     )
                   ]
@@ -252,6 +252,14 @@ class _ButtonState extends State<Button> {
         return color;
       }
     }
+    if (widget.type == ButtonType.normal) {
+      var color = widget.color ?? context.colorScheme.surfaceContainer;
+      if (isHover) {
+        return color.withOpacity(0.9);
+      } else {
+        return color;
+      }
+    }
     if (isHover) {
       return context.colorScheme.outline.withOpacity(0.2);
     }
diff --git a/lib/foundation/favorites.dart b/lib/foundation/favorites.dart
index b237e99..d8cc0bb 100644
--- a/lib/foundation/favorites.dart
+++ b/lib/foundation/favorites.dart
@@ -597,4 +597,8 @@ class LocalFavoritesManager {
       }
     }
   }
+
+  void close() {
+    _db.dispose();
+  }
 }
diff --git a/lib/foundation/history.dart b/lib/foundation/history.dart
index 30feb28..71ef40d 100644
--- a/lib/foundation/history.dart
+++ b/lib/foundation/history.dart
@@ -172,6 +172,8 @@ class HistoryManager with ChangeNotifier {
           max_page int
         );
       """);
+
+    notifyListeners();
   }
 
   /// add history. if exists, update time.
@@ -275,4 +277,8 @@ class HistoryManager with ChangeNotifier {
     """);
     return res.first[0] as int;
   }
+
+  void close() {
+    _db.dispose();
+  }
 }
diff --git a/lib/pages/settings/app.dart b/lib/pages/settings/app.dart
index 1eaeaa0..4856248 100644
--- a/lib/pages/settings/app.dart
+++ b/lib/pages/settings/app.dart
@@ -86,6 +86,36 @@ class _AppSettingsState extends State<AppSettings> {
           },
           actionTitle: 'Set'.tl,
         ).toSliver(),
+        _CallbackSetting(
+          title: "Export App Data".tl,
+          callback: () async {
+            var controller = showLoadingDialog(context);
+            var file = await exportAppData();
+            await saveFile(filename: "data.venera", file: file);
+            controller.close();
+          },
+          actionTitle: 'Export'.tl,
+        ).toSliver(),
+        _CallbackSetting(
+          title: "Import App Data".tl,
+          callback: () async {
+            var controller = showLoadingDialog(context);
+            var file = await selectFile(ext: ['venera']);
+            if(file != null) {
+              var cacheFile = File(FilePath.join(App.cachePath, "temp.venera"));
+              await file.saveTo(cacheFile.path);
+              try {
+                await importAppData(cacheFile);
+              }
+              catch(e, s) {
+                Log.error("Import data", e.toString(), s);
+                context.showMessage(message: "Failed to import data".tl);
+              }
+            }
+            controller.close();
+          },
+          actionTitle: 'Import'.tl,
+        ).toSliver(),
         _SettingPartTitle(
           title: "Log".tl,
           icon: Icons.error_outline,
diff --git a/lib/pages/settings/appearance.dart b/lib/pages/settings/appearance.dart
index af3f013..2f96bd8 100644
--- a/lib/pages/settings/appearance.dart
+++ b/lib/pages/settings/appearance.dart
@@ -21,6 +21,9 @@ class _AppearanceSettingsState extends State<AppearanceSettings> {
             "light": "Light".tl,
             "dark": "Dark".tl,
           },
+          onChanged: () async {
+            App.forceRebuild();
+          },
         ).toSliver(),
         SelectSetting(
           title: "Theme Color".tl,
diff --git a/lib/pages/settings/setting_components.dart b/lib/pages/settings/setting_components.dart
index 04ea79f..677c98f 100644
--- a/lib/pages/settings/setting_components.dart
+++ b/lib/pages/settings/setting_components.dart
@@ -434,7 +434,7 @@ class _CallbackSetting extends StatelessWidget {
     return ListTile(
       title: Text(title),
       subtitle: subtitle == null ? null : Text(subtitle!),
-      trailing: FilledButton(
+      trailing: Button.normal(
         onPressed: callback,
         child: Text(actionTitle),
       ).fixHeight(28),
diff --git a/lib/pages/settings/settings_page.dart b/lib/pages/settings/settings_page.dart
index 188dc2f..f574e4f 100644
--- a/lib/pages/settings/settings_page.dart
+++ b/lib/pages/settings/settings_page.dart
@@ -14,6 +14,7 @@ import 'package:venera/foundation/consts.dart';
 import 'package:venera/foundation/local.dart';
 import 'package:venera/foundation/log.dart';
 import 'package:venera/network/app_dio.dart';
+import 'package:venera/utils/data.dart';
 import 'package:venera/utils/io.dart';
 import 'package:venera/utils/translations.dart';
 import 'package:yaml/yaml.dart';
diff --git a/lib/utils/data.dart b/lib/utils/data.dart
new file mode 100644
index 0000000..486aac8
--- /dev/null
+++ b/lib/utils/data.dart
@@ -0,0 +1,71 @@
+import 'dart:isolate';
+
+import 'package:venera/foundation/app.dart';
+import 'package:venera/foundation/appdata.dart';
+import 'package:venera/foundation/comic_source/comic_source.dart';
+import 'package:venera/foundation/favorites.dart';
+import 'package:venera/foundation/history.dart';
+import 'package:zip_flutter/zip_flutter.dart';
+
+import 'io.dart';
+
+Future<File> exportAppData() async {
+  var time = DateTime.now().millisecondsSinceEpoch ~/ 1000;
+  var cacheFilePath = FilePath.join(App.cachePath, '$time.venera');
+  var cacheFile = File(cacheFilePath);
+  var dataPath = App.dataPath;
+  if(await cacheFile.exists()) {
+    await cacheFile.delete();
+  }
+  await Isolate.run(() {
+    var zipFile = ZipFile.open(cacheFilePath);
+    var historyFile = FilePath.join(dataPath, "history.db");
+    var localFavoriteFile = FilePath.join(dataPath, "local_favorite.db");
+    var appdata = FilePath.join(dataPath, "appdata.json");
+    zipFile.addFile("history.db", historyFile);
+    zipFile.addFile("local_favorite.db", localFavoriteFile);
+    zipFile.addFile("appdata.json", appdata);
+    for(var file in Directory(FilePath.join(dataPath, "comic_source")).listSync()) {
+      if(file is File) {
+        zipFile.addFile("comic_source/${file.name}", file.path);
+      }
+    }
+    zipFile.close();
+  });
+  return cacheFile;
+}
+
+Future<void> importAppData(File file) async {
+  var cacheDirPath = FilePath.join(App.cachePath, 'temp_data');
+  var cacheDir = Directory(cacheDirPath);
+  await Isolate.run(() {
+    ZipFile.openAndExtract(file.path, cacheDirPath);
+  });
+  var historyFile = cacheDir.joinFile("history.db");
+  var localFavoriteFile = cacheDir.joinFile("local_favorite.db");
+  var appdataFile = cacheDir.joinFile("appdata.json");
+  if(await historyFile.exists()) {
+    HistoryManager().close();
+    await historyFile.copy(FilePath.join(App.dataPath, "history.db"));
+    HistoryManager().init();
+  }
+  if(await localFavoriteFile.exists()) {
+    LocalFavoritesManager().close();
+    await localFavoriteFile.copy(FilePath.join(App.dataPath, "local_favorite.db"));
+    LocalFavoritesManager().init();
+  }
+  if(await appdataFile.exists()) {
+    await appdataFile.copy(FilePath.join(App.dataPath, "appdata.json"));
+    appdata.init();
+  }
+  var comicSourceDir = FilePath.join(cacheDirPath, "comic_source");
+  if(Directory(comicSourceDir).existsSync()) {
+    for(var file in Directory(comicSourceDir).listSync()) {
+      if(file is File) {
+        var targetFile = FilePath.join(App.dataPath, "comic_source", file.name);
+        await file.copy(targetFile);
+      }
+    }
+    await ComicSource.reload();
+  }
+}
diff --git a/lib/utils/io.dart b/lib/utils/io.dart
index 9479f90..a76353d 100644
--- a/lib/utils/io.dart
+++ b/lib/utils/io.dart
@@ -169,7 +169,8 @@ Future<file_selector.XFile?> selectFile({required List<String> ext}) async {
     acceptedTypeGroups: <file_selector.XTypeGroup>[typeGroup],
   );
   if (file == null) return null;
-  if (!ext.contains(file?.path.split(".").last)) {
+  if (!ext.contains(file.path.split(".").last)) {
+    App.rootContext.showMessage(message: "Invalid file type");
     return null;
   }
   return file;
diff --git a/windows/build.iss b/windows/build.iss
index ea634ce..949b5d0 100644
--- a/windows/build.iss
+++ b/windows/build.iss
@@ -53,6 +53,7 @@ Source: "{#RootPath}\build\windows\x64\runner\Release\share_plus_plugin.dll"; De
 Source: "{#RootPath}\build\windows\x64\runner\Release\url_launcher_windows_plugin.dll"; DestDir: "{app}"; Flags: ignoreversion
 Source: "{#RootPath}\build\windows\x64\runner\Release\screen_retriever_plugin.dll"; DestDir: "{app}"; Flags: ignoreversion
 Source: "{#RootPath}\build\windows\x64\runner\Release\window_manager_plugin.dll"; DestDir: "{app}"; Flags: ignoreversion
+Source: "{#RootPath}\build\windows\x64\runner\Release\zip_flutter.dll"; DestDir: "{app}"; Flags: ignoreversion
 Source: "{#RootPath}\build\windows\x64\runner\Release\data\*"; DestDir: "{app}\data"; Flags: ignoreversion recursesubdirs createallsubdirs
 ; NOTE: Don't use "Flags: ignoreversion" on any shared system files