diff --git a/lib/app.dart b/lib/app.dart
index fed42477..2561ec3f 100644
--- a/lib/app.dart
+++ b/lib/app.dart
@@ -1,7 +1,7 @@
 import 'package:dynamic_color/dynamic_color.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
 import 'package:toolbox/core/extension/locale.dart';
 
 import 'core/utils/ui.dart';
diff --git a/lib/core/extension/context/common.dart b/lib/core/extension/context/common.dart
new file mode 100644
index 00000000..30ba715f
--- /dev/null
+++ b/lib/core/extension/context/common.dart
@@ -0,0 +1,11 @@
+import 'package:flutter/material.dart';
+
+extension ContextX on BuildContext {
+  void pop<T extends Object?>([T? result]) {
+    Navigator.of(this).pop<T>(result);
+  }
+
+  bool get canPop => Navigator.of(this).canPop();
+
+  bool get isDark => Theme.of(this).brightness == Brightness.dark;
+}
diff --git a/lib/core/extension/context.dart b/lib/core/extension/context/dialog.dart
similarity index 61%
rename from lib/core/extension/context.dart
rename to lib/core/extension/context/dialog.dart
index aea37ffe..376ed3f7 100644
--- a/lib/core/extension/context.dart
+++ b/lib/core/extension/context/dialog.dart
@@ -1,55 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/view/widget/rebuild.dart';
+import 'package:toolbox/core/extension/context/common.dart';
 
-import '../../data/model/server/snippet.dart';
-import '../../data/provider/snippet.dart';
-import '../../data/res/ui.dart';
-import '../../locator.dart';
-import '../../view/widget/input_field.dart';
-import '../../view/widget/picker.dart';
-import '../route.dart';
-
-extension ContextX on BuildContext {
-  void pop<T extends Object?>([T? result]) {
-    Navigator.of(this).pop<T>(result);
-  }
-
-  bool get canPop => Navigator.of(this).canPop();
-
-  bool get isDark => Theme.of(this).brightness == Brightness.dark;
-}
-
-extension SnackBarX on BuildContext {
-  void showSnackBar(String text) =>
-      ScaffoldMessenger.of(this).showSnackBar(SnackBar(
-        content: Text(text),
-        behavior: SnackBarBehavior.floating,
-      ));
-
-  void showSnackBarWithAction(
-    String content,
-    String action,
-    GestureTapCallback onTap,
-  ) {
-    ScaffoldMessenger.of(this).showSnackBar(SnackBar(
-      content: Text(content),
-      behavior: SnackBarBehavior.floating,
-      action: SnackBarAction(
-        label: action,
-        onPressed: onTap,
-      ),
-    ));
-  }
-
-  void showRestartSnackbar({String? btn, String? msg}) {
-    showSnackBarWithAction(
-      msg ?? 'Need restart to take effect',
-      btn ?? 'Restart',
-      () => RebuildWidget.restartApp(this),
-    );
-  }
-}
+import '../../../data/model/server/snippet.dart';
+import '../../../data/provider/snippet.dart';
+import '../../../data/res/ui.dart';
+import '../../../locator.dart';
+import '../../../view/widget/input_field.dart';
+import '../../../view/widget/picker.dart';
+import '../../route.dart';
 
 extension DialogX on BuildContext {
   Future<T?> showRoundDialog<T>({
@@ -74,7 +33,7 @@ extension DialogX on BuildContext {
 
   void showLoadingDialog({bool barrierDismiss = false}) {
     showRoundDialog(
-      child: centerSizedLoading,
+      child: UIs.centerSizedLoading,
       barrierDismiss: barrierDismiss,
     );
   }
diff --git a/lib/core/extension/context/snackbar.dart b/lib/core/extension/context/snackbar.dart
new file mode 100644
index 00000000..e207e0f7
--- /dev/null
+++ b/lib/core/extension/context/snackbar.dart
@@ -0,0 +1,33 @@
+import 'package:flutter/material.dart';
+import 'package:toolbox/view/widget/rebuild.dart';
+
+extension SnackBarX on BuildContext {
+  void showSnackBar(String text) =>
+      ScaffoldMessenger.of(this).showSnackBar(SnackBar(
+        content: Text(text),
+        behavior: SnackBarBehavior.floating,
+      ));
+
+  void showSnackBarWithAction(
+    String content,
+    String action,
+    GestureTapCallback onTap,
+  ) {
+    ScaffoldMessenger.of(this).showSnackBar(SnackBar(
+      content: Text(content),
+      behavior: SnackBarBehavior.floating,
+      action: SnackBarAction(
+        label: action,
+        onPressed: onTap,
+      ),
+    ));
+  }
+
+  void showRestartSnackbar({String? btn, String? msg}) {
+    showSnackBarWithAction(
+      msg ?? 'Need restart to take effect',
+      btn ?? 'Restart',
+      () => RebuildWidget.restartApp(this),
+    );
+  }
+}
diff --git a/lib/core/extension/ssh_client.dart b/lib/core/extension/ssh_client.dart
index 866f83ff..ba5d3bf8 100644
--- a/lib/core/extension/ssh_client.dart
+++ b/lib/core/extension/ssh_client.dart
@@ -3,7 +3,7 @@ import 'dart:async';
 import 'package:dartssh2/dartssh2.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/widgets.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/core/extension/stringx.dart';
 import 'package:toolbox/core/extension/uint8list.dart';
 
@@ -70,7 +70,7 @@ extension SSHClientX on SSHClient {
         if (isRequestingPwd) return;
         isRequestingPwd = true;
         if (data.contains('[sudo] password for ')) {
-          final user = pwdRequestWithUserReg.firstMatch(data)?.group(1);
+          final user = Miscs.pwdRequestWithUserReg.firstMatch(data)?.group(1);
           if (context == null) return;
           final pwd = await context.showPwdDialog(user);
           if (pwd == null || pwd.isEmpty) {
diff --git a/lib/core/update.dart b/lib/core/update.dart
index 125a0be9..1d297a2e 100644
--- a/lib/core/update.dart
+++ b/lib/core/update.dart
@@ -4,7 +4,9 @@ import 'package:dio/dio.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:r_upgrade/r_upgrade.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/data/model/app/update.dart';
 import 'package:toolbox/data/res/logger.dart';
 import 'package:toolbox/data/res/path.dart';
@@ -103,10 +105,8 @@ Future<void> _doUpdate(AppUpdate update, BuildContext context, S? s) async {
 // rmdir Download
 Future<void> _rmDownloadApks() async {
   if (!isAndroid) return;
-  final dlDir = Directory(await _dlDir);
+  final dlDir = Directory(await Paths.dl);
   if (await dlDir.exists()) {
     await dlDir.delete(recursive: true);
   }
 }
-
-Future<String> get _dlDir async => joinPath(await docDir, 'Download');
diff --git a/lib/core/utils/icloud.dart b/lib/core/utils/icloud.dart
index 1a34040f..6fc2d48d 100644
--- a/lib/core/utils/icloud.dart
+++ b/lib/core/utils/icloud.dart
@@ -29,7 +29,7 @@ class ICloud {
     final completer = Completer<ICloudErr?>();
     await ICloudStorage.upload(
       containerId: _containerId,
-      filePath: localPath ?? '${await docDir}/$relativePath',
+      filePath: localPath ?? '${await Paths.doc}/$relativePath',
       destinationRelativePath: relativePath,
       onProgress: (stream) {
         stream.listen(
@@ -73,7 +73,7 @@ class ICloud {
     await ICloudStorage.download(
       containerId: _containerId,
       relativePath: relativePath,
-      destinationFilePath: localPath ?? '${await docDir}/$relativePath',
+      destinationFilePath: localPath ?? '${await Paths.doc}/$relativePath',
       onProgress: (stream) {
         stream.listen(
           null,
@@ -122,7 +122,7 @@ class ICloud {
         }
       }));
 
-      final docPath = await docDir;
+      final docPath = await Paths.doc;
 
       /// compare files in iCloud and local
       mission.addAll(allFiles.map((file) async {
@@ -176,7 +176,7 @@ class ICloud {
 
   static Future<void> syncDb() async {
     if (!isIOS && !isMacOS) return;
-    final docPath = await docDir;
+    final docPath = await Paths.doc;
     final dir = Directory(docPath);
     final files = await dir.list().toList();
     // filter out non-hive(db) files
diff --git a/lib/data/model/app/backup.dart b/lib/data/model/app/backup.dart
index 0e736748..929db86a 100644
--- a/lib/data/model/app/backup.dart
+++ b/lib/data/model/app/backup.dart
@@ -70,7 +70,7 @@ class Backup {
 
   static Future<void> backup() async {
     final result = _diyEncrtpt(json.encode(Backup.loadFromStore()));
-    await File(await backupPath).writeAsString(result);
+    await File(await Paths.bak).writeAsString(result);
   }
 
   Future<void> restore() async {
diff --git a/lib/data/model/app/dynamic_color.dart b/lib/data/model/app/dynamic_color.dart
index 7f6b92d7..bd799e12 100644
--- a/lib/data/model/app/dynamic_color.dart
+++ b/lib/data/model/app/dynamic_color.dart
@@ -1,6 +1,5 @@
 import 'package:flutter/widgets.dart';
-
-import '../../../core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
 
 class DynamicColor {
   /// 白天模式显示的颜色
diff --git a/lib/data/model/app/shell_func.dart b/lib/data/model/app/shell_func.dart
index 2e1a01b3..8b52409c 100644
--- a/lib/data/model/app/shell_func.dart
+++ b/lib/data/model/app/shell_func.dart
@@ -1,7 +1,8 @@
 import '../../res/build_data.dart';
-import '../../res/server_cmd.dart';
 import '../server/system.dart';
 
+const seperator = 'SrvBoxSep';
+
 const _cmdDivider = '\necho $seperator\n\t';
 
 const _serverBoxDir = r'$HOME/.config/server_box';
diff --git a/lib/data/model/server/conn.dart b/lib/data/model/server/conn.dart
index 42d76ce2..cb4f43c5 100644
--- a/lib/data/model/server/conn.dart
+++ b/lib/data/model/server/conn.dart
@@ -20,7 +20,7 @@ Conn? parseConn(String raw) {
   final idx = lines.lastWhere((element) => element.startsWith('Tcp:'),
       orElse: () => '');
   if (idx != '') {
-    final vals = idx.split(numReg);
+    final vals = idx.split(Miscs.numReg);
     return Conn(
       maxConn: vals[5].i,
       active: vals[6].i,
diff --git a/lib/data/model/server/disk.dart b/lib/data/model/server/disk.dart
index b160f224..84d77268 100644
--- a/lib/data/model/server/disk.dart
+++ b/lib/data/model/server/disk.dart
@@ -27,7 +27,7 @@ List<Disk> parseDisk(String raw) {
     if (item.isEmpty) {
       continue;
     }
-    final vals = item.split(numReg);
+    final vals = item.split(Miscs.numReg);
     if (vals.length == 1) {
       pathCache = vals[0];
       continue;
diff --git a/lib/data/model/server/proc.dart b/lib/data/model/server/proc.dart
index b5edc781..60956247 100644
--- a/lib/data/model/server/proc.dart
+++ b/lib/data/model/server/proc.dart
@@ -93,7 +93,7 @@ class Proc {
 
   @override
   String toString() {
-    return jsonEncoder.convert(toJson());
+    return Miscs.jsonEncoder.convert(toJson());
   }
 
   String get binary {
diff --git a/lib/data/provider/debug.dart b/lib/data/provider/debug.dart
index f9607c1d..ccb38936 100644
--- a/lib/data/provider/debug.dart
+++ b/lib/data/provider/debug.dart
@@ -52,9 +52,9 @@ class DebugProvider extends ChangeNotifier {
 
   void _addWidget(Widget widget) {
     widgets.add(widget);
-    widgets.add(height13);
-    if (widgets.length > maxDebugLogLines) {
-      widgets.removeRange(0, widgets.length - maxDebugLogLines);
+    widgets.add(UIs.height13);
+    if (widgets.length > Miscs.maxDebugLogLines) {
+      widgets.removeRange(0, widgets.length - Miscs.maxDebugLogLines);
     }
     notifyListeners();
   }
diff --git a/lib/data/provider/docker.dart b/lib/data/provider/docker.dart
index c1fb21ba..7a2eed77 100644
--- a/lib/data/provider/docker.dart
+++ b/lib/data/provider/docker.dart
@@ -12,8 +12,6 @@ import 'package:toolbox/data/res/logger.dart';
 import 'package:toolbox/data/store/docker.dart';
 import 'package:toolbox/locator.dart';
 
-import '../res/server_cmd.dart';
-
 final _dockerNotFound = RegExp(r'command not found|Unknown command');
 final _versionReg = RegExp(r'(Version:)\s+([0-9]+\.[0-9]+\.[0-9]+)');
 // eg: `Docker Engine - Community`
diff --git a/lib/data/provider/server.dart b/lib/data/provider/server.dart
index 4357f116..304d0e87 100644
--- a/lib/data/provider/server.dart
+++ b/lib/data/provider/server.dart
@@ -14,7 +14,6 @@ import '../model/server/server_private_info.dart';
 import '../model/server/server_status_update_req.dart';
 import '../model/server/snippet.dart';
 import '../model/server/try_limiter.dart';
-import '../res/server_cmd.dart';
 import '../res/status.dart';
 import '../store/server.dart';
 import '../store/setting.dart';
diff --git a/lib/data/res/color.dart b/lib/data/res/color.dart
index 9aa05c6c..c8f252db 100644
--- a/lib/data/res/color.dart
+++ b/lib/data/res/color.dart
@@ -4,6 +4,8 @@ import '../model/app/dynamic_color.dart';
 
 late Color primaryColor;
 
-const contentColor = DynamicColor(Colors.black87, Colors.white70);
-const bgColor = DynamicColor(Colors.white, Colors.black);
-const progressColor = DynamicColor(Colors.black12, Colors.white10);
+class DynamicColors {
+  static const content = DynamicColor(Colors.black87, Colors.white70);
+  static const bg = DynamicColor(Colors.white, Colors.black);
+  static const progress = DynamicColor(Colors.black12, Colors.white10);
+}
diff --git a/lib/data/res/default.dart b/lib/data/res/default.dart
index dcd9fe18..22907617 100644
--- a/lib/data/res/default.dart
+++ b/lib/data/res/default.dart
@@ -2,48 +2,50 @@ import 'dart:ui';
 
 import 'package:toolbox/data/model/ssh/virtual_key.dart';
 
-// default server details page cards order
-const defaultDetailCardOrder = [
-  'uptime',
-  'cpu',
-  'mem',
-  'swap',
-  'disk',
-  'net',
-  'temp'
-];
+class Defaults {
+  // default server details page cards order
+  static const detailCardOrder = [
+    'uptime',
+    'cpu',
+    'mem',
+    'swap',
+    'disk',
+    'net',
+    'temp'
+  ];
 
-const defaultDiskIgnorePath = [
-  'udev',
-  'tmpfs',
-  'devtmpfs',
-  'overlay',
-  'run',
-  'none',
-];
+  static const diskIgnorePath = [
+    'udev',
+    'tmpfs',
+    'devtmpfs',
+    'overlay',
+    'run',
+    'none',
+  ];
 
-const defaultSSHVirtKeys = [
-  VirtKey.esc,
-  VirtKey.alt,
-  VirtKey.home,
-  VirtKey.up,
-  VirtKey.end,
-  VirtKey.sftp,
-  VirtKey.snippet,
-  VirtKey.tab,
-  VirtKey.ctrl,
-  VirtKey.left,
-  VirtKey.down,
-  VirtKey.right,
-  VirtKey.clipboard,
-  VirtKey.ime,
-];
+  static const sshVirtKeys = [
+    VirtKey.esc,
+    VirtKey.alt,
+    VirtKey.home,
+    VirtKey.up,
+    VirtKey.end,
+    VirtKey.sftp,
+    VirtKey.snippet,
+    VirtKey.tab,
+    VirtKey.ctrl,
+    VirtKey.left,
+    VirtKey.down,
+    VirtKey.right,
+    VirtKey.clipboard,
+    VirtKey.ime,
+  ];
 
-const defaultPrimaryColor = Color.fromARGB(255, 145, 58, 31);
+  static const primaryColor = Color.fromARGB(255, 145, 58, 31);
 
-const defaultLaunchPageIdx = 0;
+  static const launchPageIdx = 0;
 
-const defaultUpdateInterval = 3;
+  static const updateInterval = 3;
 
-const defaultEditorTheme = 'a11y-light';
-const defaultEditorDarkTheme = 'monokai';
+  static const editorTheme = 'a11y-light';
+  static const editorDarkTheme = 'monokai';
+}
diff --git a/lib/data/res/github_id.dart b/lib/data/res/github_id.dart
new file mode 100644
index 00000000..cddde2cb
--- /dev/null
+++ b/lib/data/res/github_id.dart
@@ -0,0 +1,38 @@
+import 'package:toolbox/data/model/app/github_id.dart';
+
+class GithubIds {
+  // Thanks
+// If you want to change the url, please open an issue.
+  static const contributors = <GhId>{
+    'its-tom',
+    'RainSunMe',
+    'kalashnikov',
+    'azkadev',
+    'calvinweb',
+    'Liloupar'
+  };
+  static const participants = <GhId>{
+    'jaychoubaby',
+    'fecture',
+    'Tao173',
+    'QingAnLe',
+    'wxdjs',
+    'Aeorq',
+    'allonmymind',
+    'Yuuki-Rin',
+    'LittleState',
+    'karuboniru',
+    'whosphp',
+    'Climit',
+    'dianso',
+    'Jasondeepny',
+    'kaliwell',
+    'ymxkiss',
+    'Ealrang',
+    'hange33',
+    'yuchen1204',
+    'xgzxmytx',
+    'wind057',
+    'a1564471347',
+  };
+}
diff --git a/lib/data/res/highlight.dart b/lib/data/res/highlight.dart
index 8033b75b..4068bd04 100644
--- a/lib/data/res/highlight.dart
+++ b/lib/data/res/highlight.dart
@@ -1,4 +1,3 @@
-import 'package:highlight/highlight_core.dart';
 import 'package:highlight/languages/accesslog.dart';
 import 'package:highlight/languages/awk.dart';
 import 'package:highlight/languages/bash.dart';
@@ -33,52 +32,48 @@ import 'package:highlight/languages/vim.dart';
 import 'package:highlight/languages/xml.dart';
 import 'package:highlight/languages/yaml.dart';
 
-// KEY: fileNameSuffix
-// VAL: highlight
-final suffix2HighlightMap = {
-  'dart': dart,
-  'go': go,
-  'rust': rust,
-  'lua': lua,
-  'sh': bash,
-  'py': python,
-  'js': javascript,
-  'ts': typescript,
-  'java': java,
-  'kt': kotlin,
-  'swift': swift,
-  'c': cpp,
-  'oc': objectivec,
-  'ruby': ruby,
-  'perl': perl,
-  'php': php,
-  'nix': nix,
-  'lisp': lisp,
-  'sql': sql,
-  'powershell': powershell,
-  'log': accesslog,
-  'ini': ini,
-  'cmake': cmake,
-  'awk': awk,
-  'json': json,
-  'yaml': yaml,
-  'xml': xml,
-  'cpp': cpp,
-  'diff': diff,
-  'css': css,
-  'html': htmlbars,
-  'tex': tex,
-  'vim': vim,
-  'plaintext': plaintext,
-};
+class Highlights {
+  /// - KEY: fileNameSuffix
+  /// - VAL: highlight
+  static final all = {
+    'dart': dart,
+    'go': go,
+    'rust': rust,
+    'lua': lua,
+    'sh': bash,
+    'py': python,
+    'js': javascript,
+    'ts': typescript,
+    'java': java,
+    'kt': kotlin,
+    'swift': swift,
+    'c': cpp,
+    'oc': objectivec,
+    'ruby': ruby,
+    'perl': perl,
+    'php': php,
+    'nix': nix,
+    'lisp': lisp,
+    'sql': sql,
+    'powershell': powershell,
+    'log': accesslog,
+    'ini': ini,
+    'cmake': cmake,
+    'awk': awk,
+    'json': json,
+    'yaml': yaml,
+    'xml': xml,
+    'cpp': cpp,
+    'diff': diff,
+    'css': css,
+    'html': htmlbars,
+    'tex': tex,
+    'vim': vim,
+    'plaintext': plaintext,
+  };
 
-extension HighlightString on String? {
-  Mode? get highlight {
-    return suffix2HighlightMap[highlightCode];
-  }
-
-  String? get highlightCode {
-    if (this == null) return null;
-    return this!.split('.').last;
+  static String? getCode(String? fileName) {
+    if (fileName == null) return null;
+    return fileName.split('.').last;
   }
 }
diff --git a/lib/data/res/misc.dart b/lib/data/res/misc.dart
index 4f191b42..9def911e 100644
--- a/lib/data/res/misc.dart
+++ b/lib/data/res/misc.dart
@@ -2,61 +2,26 @@ import 'dart:convert';
 
 import 'package:flutter/services.dart';
 
-import '../model/app/github_id.dart';
+class Miscs {
+  /// RegExp for number
+  static final numReg = RegExp(r'\s{1,}');
 
-/// RegExp for number
-final numReg = RegExp(r'\s{1,}');
+  /// RegExp for password request
+  static final pwdRequestWithUserReg = RegExp(r'\[sudo\] password for (.+):');
 
-/// RegExp for password request
-final pwdRequestWithUserReg = RegExp(r'\[sudo\] password for (.+):');
-
-/// Private Key max allowed size is 20kb
-const privateKeyMaxSize = 20 * 1024;
+  /// Private Key max allowed size is 20kb
+  static const privateKeyMaxSize = 20 * 1024;
 
 // Editor max allowed size is 1mb
-const editorMaxSize = 1024 * 1024;
+  static const editorMaxSize = 1024 * 1024;
 
-/// Max debug log lines
-const maxDebugLogLines = 100;
+  /// Max debug log lines
+  static const maxDebugLogLines = 100;
 
-/// Method Channels
-const pkgName = 'tech.lolli.toolbox';
-const bgRunChannel = MethodChannel('$pkgName/app_retain');
-const homeWidgetChannel = MethodChannel('$pkgName/home_widget');
+  /// Method Channels
+  static const pkgName = 'tech.lolli.toolbox';
+  static const bgRunChannel = MethodChannel('$pkgName/app_retain');
+  static const homeWidgetChannel = MethodChannel('$pkgName/home_widget');
 
-// Thanks
-// If you want to change the url, please open an issue.
-const contributors = <GhId>{
-  'its-tom',
-  'RainSunMe',
-  'kalashnikov',
-  'azkadev',
-  'calvinweb',
-  'Liloupar'
-};
-const participants = <GhId>{
-  'jaychoubaby',
-  'fecture',
-  'Tao173',
-  'QingAnLe',
-  'wxdjs',
-  'Aeorq',
-  'allonmymind',
-  'Yuuki-Rin',
-  'LittleState',
-  'karuboniru',
-  'whosphp',
-  'Climit',
-  'dianso',
-  'Jasondeepny',
-  'kaliwell',
-  'ymxkiss',
-  'Ealrang',
-  'hange33',
-  'yuchen1204',
-  'xgzxmytx',
-  'wind057',
-  'a1564471347',
-};
-
-const jsonEncoder = JsonEncoder.withIndent('  ');
+  static const jsonEncoder = JsonEncoder.withIndent('  ');
+}
diff --git a/lib/data/res/path.dart b/lib/data/res/path.dart
index bbaf0865..3829e675 100644
--- a/lib/data/res/path.dart
+++ b/lib/data/res/path.dart
@@ -3,45 +3,49 @@ import 'dart:io';
 import 'package:path_provider/path_provider.dart';
 import 'package:toolbox/core/utils/platform.dart';
 
-String? _docDir;
-String? _sftpDir;
-String? _fontDir;
+class Paths {
+  static String? _docDir;
+  static String? _sftpDir;
+  static String? _fontDir;
 
-Future<String> get docDir async {
-  if (_docDir != null) {
-    return _docDir!;
-  }
-  if (isAndroid) {
-    final dir = await getExternalStorageDirectory();
-    if (dir != null) {
-      _docDir = dir.path;
-      return dir.path;
+  static Future<String> get doc async {
+    if (_docDir != null) {
+      return _docDir!;
     }
-    // fallthrough to getApplicationDocumentsDirectory
+    if (isAndroid) {
+      final dir = await getExternalStorageDirectory();
+      if (dir != null) {
+        _docDir = dir.path;
+        return dir.path;
+      }
+      // fallthrough to getApplicationDocumentsDirectory
+    }
+    final dir = await getApplicationDocumentsDirectory();
+    _docDir = dir.path;
+    return dir.path;
   }
-  final dir = await getApplicationDocumentsDirectory();
-  _docDir = dir.path;
-  return dir.path;
-}
 
-Future<String> get sftpDir async {
-  if (_sftpDir != null) {
+  static Future<String> get sftp async {
+    if (_sftpDir != null) {
+      return _sftpDir!;
+    }
+    _sftpDir = '${await doc}/sftp';
+    final dir = Directory(_sftpDir!);
+    await dir.create(recursive: true);
     return _sftpDir!;
   }
-  _sftpDir = '${await docDir}/sftp';
-  final dir = Directory(_sftpDir!);
-  await dir.create(recursive: true);
-  return _sftpDir!;
-}
 
-Future<String> get fontDir async {
-  if (_fontDir != null) {
+  static Future<String> get font async {
+    if (_fontDir != null) {
+      return _fontDir!;
+    }
+    _fontDir = '${await doc}/font';
+    final dir = Directory(_fontDir!);
+    await dir.create(recursive: true);
     return _fontDir!;
   }
-  _fontDir = '${await docDir}/font';
-  final dir = Directory(_fontDir!);
-  await dir.create(recursive: true);
-  return _fontDir!;
-}
 
-Future<String> get backupPath async => '${await docDir}/srvbox_bak.json';
+  static Future<String> get bak async => '${await doc}/srvbox_bak.json';
+
+  static Future<String> get dl async => joinPath(await doc, 'dl');
+}
diff --git a/lib/data/res/server_cmd.dart b/lib/data/res/server_cmd.dart
deleted file mode 100644
index 407c2516..00000000
--- a/lib/data/res/server_cmd.dart
+++ /dev/null
@@ -1 +0,0 @@
-const seperator = 'SrvBoxSep';
diff --git a/lib/data/res/ui.dart b/lib/data/res/ui.dart
index ae1b3145..40aa182e 100644
--- a/lib/data/res/ui.dart
+++ b/lib/data/res/ui.dart
@@ -1,52 +1,55 @@
 import 'package:flutter/material.dart';
 
-/// Font style
+class UIs {
+  /// Font style
 
-const textSize9Grey = TextStyle(color: Colors.grey, fontSize: 9);
-const textSize11 = TextStyle(fontSize: 11);
-const textSize11Grey = TextStyle(color: Colors.grey, fontSize: 11);
-const textSize13 = TextStyle(fontSize: 13);
-const textSize13Bold = TextStyle(fontSize: 13, fontWeight: FontWeight.bold);
-const textSize13Grey = TextStyle(color: Colors.grey, fontSize: 13);
-const textSize15 = TextStyle(fontSize: 15);
-const textSize18 = TextStyle(fontSize: 18);
-const textSize27 = TextStyle(fontSize: 27);
+  static const textSize9Grey = TextStyle(color: Colors.grey, fontSize: 9);
+  static const textSize11 = TextStyle(fontSize: 11);
+  static const textSize11Grey = TextStyle(color: Colors.grey, fontSize: 11);
+  static const textSize13 = TextStyle(fontSize: 13);
+  static const textSize13Bold =
+      TextStyle(fontSize: 13, fontWeight: FontWeight.bold);
+  static const textSize13Grey = TextStyle(color: Colors.grey, fontSize: 13);
+  static const textSize15 = TextStyle(fontSize: 15);
+  static const textSize18 = TextStyle(fontSize: 18);
+  static const textSize27 = TextStyle(fontSize: 27);
+  static const textGrey = TextStyle(color: Colors.grey);
+  static const textRed = TextStyle(color: Colors.red);
 
-const grey = TextStyle(color: Colors.grey);
-const textRed = TextStyle(color: Colors.red);
+  /// Icon
 
-/// Icon
+  static final appIcon = Image.asset('assets/app_icon.png');
 
-final appIcon = Image.asset('assets/app_icon.png');
+  /// Padding
 
-/// Padding
+  static const roundRectCardPadding =
+      EdgeInsets.symmetric(horizontal: 17, vertical: 13);
 
-const roundRectCardPadding = EdgeInsets.symmetric(horizontal: 17, vertical: 13);
+  /// SizedBox
 
-/// SizedBox
+  static const placeholder = SizedBox();
+  static const height13 = SizedBox(height: 13);
+  static const height77 = SizedBox(height: 77);
+  static const width13 = SizedBox(width: 13);
+  static const width7 = SizedBox(width: 7);
 
-const placeholder = SizedBox();
-const height13 = SizedBox(height: 13);
-const height77 = SizedBox(height: 77);
-const width13 = SizedBox(width: 13);
-const width7 = SizedBox(width: 7);
+  /// Misc
 
-/// Misc
+  static const popMenuChild = Padding(
+    padding: EdgeInsets.only(left: 7),
+    child: Icon(
+      Icons.more_vert,
+      size: 21,
+    ),
+  );
 
-const popMenuChild = Padding(
-  padding: EdgeInsets.only(left: 7),
-  child: Icon(
-    Icons.more_vert,
-    size: 21,
-  ),
-);
+  static const centerLoading = Center(child: CircularProgressIndicator());
 
-const centerLoading = Center(child: CircularProgressIndicator());
-
-const centerSizedLoading = SizedBox(
-  width: 77,
-  height: 77,
-  child: Center(
-    child: CircularProgressIndicator(),
-  ),
-);
+  static const centerSizedLoading = SizedBox(
+    width: 77,
+    height: 77,
+    child: Center(
+      child: CircularProgressIndicator(),
+    ),
+  );
+}
diff --git a/lib/data/res/url.dart b/lib/data/res/url.dart
index c897efd7..cb64eec6 100644
--- a/lib/data/res/url.dart
+++ b/lib/data/res/url.dart
@@ -1,4 +1,6 @@
-const baseResUrl = 'https://res.lolli.tech/serverbox';
-const myGithub = 'https://github.com/lollipopkit';
-const appHelpUrl = '$myGithub/flutter_server_box#-help';
-const appWikiUrl = '$myGithub/flutter_server_box/wiki';
+class Urls {
+  static const resBase = 'https://res.lolli.tech/serverbox';
+  static const myGithub = 'https://github.com/lollipopkit';
+  static const appHelp = '$myGithub/flutter_server_box#-help';
+  static const appWiki = '$myGithub/flutter_server_box/wiki';
+}
diff --git a/lib/data/service/app.dart b/lib/data/service/app.dart
index e12b3870..5f96accc 100644
--- a/lib/data/service/app.dart
+++ b/lib/data/service/app.dart
@@ -5,7 +5,7 @@ import '../res/url.dart';
 
 class AppService {
   Future<AppUpdate> getUpdate() async {
-    final resp = await Dio().get('$baseResUrl/update.json');
+    final resp = await Dio().get('${Urls.resBase}/update.json');
     return AppUpdate.fromJson(resp.data);
   }
 }
diff --git a/lib/data/store/setting.dart b/lib/data/store/setting.dart
index c6660d0e..231af1f9 100644
--- a/lib/data/store/setting.dart
+++ b/lib/data/store/setting.dart
@@ -52,12 +52,12 @@ class SettingStore extends PersistentStore {
   late final launchPage = StoreProperty(
     box,
     'launchPage',
-    defaultLaunchPageIdx,
+    Defaults.launchPageIdx,
   );
 
   /// Server detail disk ignore path
   late final diskIgnorePath =
-      StoreListProperty(box, 'diskIgnorePath', defaultDiskIgnorePath);
+      StoreListProperty(box, 'diskIgnorePath', Defaults.diskIgnorePath);
 
   /// Use double column servers page on Desktop
   late final doubleColumnServersPage = StoreProperty(
@@ -77,7 +77,7 @@ class SettingStore extends PersistentStore {
   late final serverStatusUpdateInterval = StoreProperty(
     box,
     'serverStatusUpdateInterval',
-    defaultUpdateInterval,
+    Defaults.updateInterval,
   );
 
   // Max retry count when connect to server
@@ -99,7 +99,7 @@ class SettingStore extends PersistentStore {
 
   // Server details page cards order
   late final detailCardOrder =
-      StoreListProperty(box, 'detailCardPrder', defaultDetailCardOrder);
+      StoreListProperty(box, 'detailCardPrder', Defaults.detailCardOrder);
 
   // SSH term font size
   late final termFontSize = StoreProperty(box, 'termFontSize', 13.0);
@@ -117,13 +117,13 @@ class SettingStore extends PersistentStore {
   late final editorTheme = StoreProperty(
     box,
     'editorTheme',
-    defaultEditorTheme,
+    Defaults.editorTheme,
   );
 
   late final editorDarkTheme = StoreProperty(
     box,
     'editorDarkTheme',
-    defaultEditorDarkTheme,
+    Defaults.editorDarkTheme,
   );
 
   late final fullScreen = StoreProperty(
@@ -153,7 +153,7 @@ class SettingStore extends PersistentStore {
   late final sshVirtKeys = StoreListProperty(
     box,
     'sshVirtKeys',
-    defaultSSHVirtKeys,
+    Defaults.sshVirtKeys,
   );
 
   late final netViewType = StoreProperty(
diff --git a/lib/main.dart b/lib/main.dart
index ed2ef372..18388420 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -100,7 +100,7 @@ Future<void> initApp() async {
   if (isAndroid) {
     // Only start service when [bgRun] is true.
     if (locator<SettingStore>().bgRun.fetch()) {
-      bgRunChannel.invokeMethod('startService');
+      Miscs.bgRunChannel.invokeMethod('startService');
     }
     // SharedPreferences is only used on Android for saving home widgets settings.
     SharedPreferences.setPrefix('');
diff --git a/lib/view/page/backup.dart b/lib/view/page/backup.dart
index 56aff879..ff80e539 100644
--- a/lib/view/page/backup.dart
+++ b/lib/view/page/backup.dart
@@ -4,7 +4,9 @@ import 'dart:io';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/utils/platform.dart';
 import 'package:toolbox/data/model/app/backup.dart';
 import 'package:toolbox/data/res/logger.dart';
@@ -28,7 +30,7 @@ class BackupPage extends StatelessWidget {
     final s = S.of(context)!;
     return Scaffold(
       appBar: CustomAppBar(
-        title: Text(s.backupAndRestore, style: textSize18),
+        title: Text(s.backupAndRestore, style: UIs.textSize18),
       ),
       body: _buildBody(context, s),
     );
@@ -40,7 +42,7 @@ class BackupPage extends StatelessWidget {
       crossAxisAlignment: CrossAxisAlignment.center,
       children: [
         if (isMacOS || isIOS) _buildIcloudSync(context, s),
-        height13,
+        UIs.height13,
         Padding(
           padding: const EdgeInsets.all(37),
           child: Text(
@@ -48,24 +50,24 @@ class BackupPage extends StatelessWidget {
             textAlign: TextAlign.center,
           ),
         ),
-        height77,
+        UIs.height77,
         _buildCard(
           s.restore,
           Icons.download,
           () => _onRestore(context, s),
         ),
-        height13,
+        UIs.height13,
         const SizedBox(
           width: 37,
           child: Divider(),
         ),
-        height13,
+        UIs.height13,
         _buildCard(
           s.backup,
           Icons.save,
           () async {
             await Backup.backup();
-            await shareFiles(context, [await backupPath]);
+            await shareFiles(context, [await Paths.bak]);
           },
         )
       ],
@@ -87,7 +89,7 @@ class BackupPage extends StatelessWidget {
             mainAxisAlignment: MainAxisAlignment.center,
             children: [
               Icon(icon, size: 20),
-              width7,
+              UIs.width7,
               Text(text),
             ],
           ),
@@ -104,7 +106,7 @@ class BackupPage extends StatelessWidget {
           'iCloud',
           textAlign: TextAlign.center,
         ),
-        width13,
+        UIs.width13,
         // Hive db only save data into local file after app exit,
         // so this button is useless
         // IconButton(
diff --git a/lib/view/page/convert.dart b/lib/view/page/convert.dart
index 9ea2c551..fb2f6784 100644
--- a/lib/view/page/convert.dart
+++ b/lib/view/page/convert.dart
@@ -3,7 +3,7 @@ import 'dart:convert';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/data/res/ui.dart';
 import 'package:toolbox/view/widget/value_notifier.dart';
 
@@ -61,7 +61,7 @@ class _ConvertPageState extends State<ConvertPage>
         controller: ScrollController(),
         child: Column(
           children: [
-            height13,
+            UIs.height13,
             _buildInputTop(),
             _buildMiddleBtns(),
             _buildResult(),
diff --git a/lib/view/page/debug.dart b/lib/view/page/debug.dart
index 3f072ed5..74ecb868 100644
--- a/lib/view/page/debug.dart
+++ b/lib/view/page/debug.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
 import 'package:toolbox/data/provider/debug.dart';
 
 import '../widget/custom_appbar.dart';
diff --git a/lib/view/page/docker.dart b/lib/view/page/docker.dart
index 09e983f7..2471e88a 100644
--- a/lib/view/page/docker.dart
+++ b/lib/view/page/docker.dart
@@ -1,7 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/route.dart';
 import 'package:toolbox/data/model/docker/image.dart';
 import 'package:toolbox/view/widget/input_field.dart';
@@ -214,7 +216,7 @@ class _DockerManagePageState extends State<DockerManagePage> {
           _docker.refresh();
         }
       });
-      return centerLoading;
+      return UIs.centerLoading;
     }
 
     final items = <Widget>[
@@ -236,7 +238,7 @@ class _DockerManagePageState extends State<DockerManagePage> {
         title: Text(_s.imagesList),
         subtitle: Text(
           _s.dockerImagesFmt(_docker.images!.length),
-          style: grey,
+          style: UIs.textGrey,
         ),
       ),
     ];
@@ -247,7 +249,7 @@ class _DockerManagePageState extends State<DockerManagePage> {
   Widget _buildImageItem(DockerImage e) {
     return ListTile(
       title: Text(e.repo),
-      subtitle: Text('${e.tag} - ${e.size}', style: grey),
+      subtitle: Text('${e.tag} - ${e.size}', style: UIs.textGrey),
       trailing: IconButton(
         padding: EdgeInsets.zero,
         alignment: Alignment.centerRight,
@@ -276,14 +278,14 @@ class _DockerManagePageState extends State<DockerManagePage> {
               context.showSnackBar(result.message ?? _s.unknownError);
             }
           },
-          child: Text(_s.ok, style: textRed),
+          child: Text(_s.ok, style: UIs.textRed),
         ),
       ],
     );
   }
 
   Widget _buildLoading() {
-    if (_docker.runLog == null) return placeholder;
+    if (_docker.runLog == null) return UIs.placeholder;
     return Padding(
       padding: const EdgeInsets.all(17),
       child: Column(
@@ -291,7 +293,7 @@ class _DockerManagePageState extends State<DockerManagePage> {
           const Center(
             child: CircularProgressIndicator(),
           ),
-          height13,
+          UIs.height13,
           Text(_docker.runLog ?? '...'),
         ],
       ),
@@ -309,7 +311,7 @@ class _DockerManagePageState extends State<DockerManagePage> {
         return Text(_s.waitConnection);
       case DockerErrType.invalidVersion:
         return UrlText(
-          text: _s.invalidVersionHelp(appHelpUrl),
+          text: _s.invalidVersionHelp(Urls.appHelp),
           replace: 'Github',
         );
       case DockerErrType.parseImages:
@@ -344,7 +346,10 @@ class _DockerManagePageState extends State<DockerManagePage> {
     final items = <Widget>[
       ListTile(
         title: Text(_s.containerStatus),
-        subtitle: Text(_buildPsCardSubtitle(_docker.items!), style: grey),
+        subtitle: Text(
+          _buildPsCardSubtitle(_docker.items!),
+          style: UIs.textGrey,
+        ),
       ),
     ];
     items.addAll(_docker.items!.map(_buildPsItem));
@@ -359,7 +364,7 @@ class _DockerManagePageState extends State<DockerManagePage> {
       title: Text(item.image),
       subtitle: Text(
         '${item.name} - ${item.status}',
-        style: textSize13Grey,
+        style: UIs.textSize13Grey,
       ),
       trailing: _buildMoreBtn(item),
     );
diff --git a/lib/view/page/editor.dart b/lib/view/page/editor.dart
index 73a09236..86cf8342 100644
--- a/lib/view/page/editor.dart
+++ b/lib/view/page/editor.dart
@@ -7,7 +7,8 @@ import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:flutter_highlight/theme_map.dart';
 import 'package:flutter_highlight/themes/a11y-light.dart';
 import 'package:flutter_highlight/themes/monokai.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/core/utils/misc.dart';
 import 'package:toolbox/data/res/highlight.dart';
 import 'package:toolbox/data/store/setting.dart';
@@ -58,9 +59,9 @@ class _EditorPageState extends State<EditorPage> {
     super.initState();
 
     /// Higher priority than [path]
-    _langCode = widget.langCode ?? widget.path.highlightCode;
+    _langCode = widget.langCode ?? Highlights.getCode(widget.path);
     _controller = CodeController(
-      language: suffix2HighlightMap[_langCode],
+      language: Highlights.all[_langCode],
     );
 
     /// TODO: This is a temporary solution to avoid the loading stuck
@@ -131,12 +132,12 @@ class _EditorPageState extends State<EditorPage> {
         PopupMenuButton<String>(
           icon: const Icon(Icons.language),
           onSelected: (value) {
-            _controller.language = suffix2HighlightMap[value];
+            _controller.language = Highlights.all[value];
             _langCode = value;
           },
           initialValue: _langCode,
           itemBuilder: (BuildContext context) {
-            return suffix2HighlightMap.keys.map((e) {
+            return Highlights.all.keys.map((e) {
               return PopupMenuItem(
                 value: e,
                 child: Text(e),
diff --git a/lib/view/page/full_screen.dart b/lib/view/page/full_screen.dart
index 2033527b..2a5ea1a9 100644
--- a/lib/view/page/full_screen.dart
+++ b/lib/view/page/full_screen.dart
@@ -213,7 +213,7 @@ class _FullScreenPageState extends State<FullScreenPage> with AfterLayoutMixin {
         mainAxisSize: MainAxisSize.min,
         crossAxisAlignment: CrossAxisAlignment.center,
         children: [
-          height13,
+          UIs.height13,
           Row(
             mainAxisSize: MainAxisSize.min,
             mainAxisAlignment: MainAxisAlignment.center,
@@ -232,7 +232,7 @@ class _FullScreenPageState extends State<FullScreenPage> with AfterLayoutMixin {
               )
             ],
           ),
-          height13,
+          UIs.height13,
           _buildTopRightText(ss, cs),
         ],
       ),
@@ -248,7 +248,7 @@ class _FullScreenPageState extends State<FullScreenPage> with AfterLayoutMixin {
     );
     return Text(
       topRightStr,
-      style: textSize11Grey,
+      style: UIs.textSize11Grey,
       textScaleFactor: 1.0,
     );
   }
diff --git a/lib/view/page/home.dart b/lib/view/page/home.dart
index 86338131..30e3214c 100644
--- a/lib/view/page/home.dart
+++ b/lib/view/page/home.dart
@@ -4,7 +4,8 @@ import 'package:after_layout/after_layout.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:get_it/get_it.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/data/res/github_id.dart';
 import 'package:toolbox/data/res/logger.dart';
 
 import '../../core/analysis.dart';
@@ -93,7 +94,7 @@ class _HomePageState extends State<HomePage>
         // Keep running in background on Android device
         if (isAndroid && _setting.bgRun.fetch()) {
           if (_app.moveBg) {
-            bgRunChannel.invokeMethod('sendToBackground');
+            Miscs.bgRunChannel.invokeMethod('sendToBackground');
           }
         } else {
           _serverProvider.setDisconnected();
@@ -214,7 +215,7 @@ class _HomePageState extends State<HomePage>
             child: Text(
               '${BuildData.name}\n$_versionStr',
               textAlign: TextAlign.center,
-              style: textSize13,
+              style: UIs.textSize13,
             ),
           ),
           const SizedBox(height: 37),
@@ -271,11 +272,11 @@ class _HomePageState extends State<HomePage>
       child: _buildAboutContent(),
       actions: [
         TextButton(
-          onPressed: () => openUrl(appWikiUrl),
+          onPressed: () => openUrl(Urls.appWiki),
           child: const Text('Wiki'),
         ),
         TextButton(
-          onPressed: () => openUrl(appHelpUrl),
+          onPressed: () => openUrl(Urls.appHelp),
           child: Text(_s.feedback),
         ),
         TextButton(
@@ -293,23 +294,23 @@ class _HomePageState extends State<HomePage>
         crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           UrlText(
-            text: _s.madeWithLove(myGithub),
+            text: _s.madeWithLove(Urls.myGithub),
             replace: 'lollipopkit',
           ),
-          height13,
+          UIs.height13,
           // Use [UrlText] for same text style
           Text(_s.aboutThanks),
-          height13,
+          UIs.height13,
           const Text('Contributors:'),
-          ...contributors.map(
+          ...GithubIds.contributors.map(
             (name) => UrlText(
               text: name.url,
               replace: name,
             ),
           ),
-          height13,
+          UIs.height13,
           const Text('Participants:'),
-          ...participants.map(
+          ...GithubIds.participants.map(
             (name) => UrlText(
               text: name.url,
               replace: name,
@@ -323,7 +324,7 @@ class _HomePageState extends State<HomePage>
   Widget _buildIcon() {
     return ConstrainedBox(
       constraints: const BoxConstraints(maxHeight: 57, maxWidth: 57),
-      child: appIcon,
+      child: UIs.appIcon,
     );
   }
 
@@ -354,7 +355,7 @@ class _HomePageState extends State<HomePage>
 
   void updateHomeWidget() {
     if (_setting.autoUpdateHomeWidget.fetch()) {
-      homeWidgetChannel.invokeMethod('update');
+      Miscs.homeWidgetChannel.invokeMethod('update');
     }
   }
 
@@ -362,7 +363,7 @@ class _HomePageState extends State<HomePage>
     /// Encode [map] to String with indent `\t`
     final map = _setting.toJson();
     final keys = map.keys;
-    final text = jsonEncoder.convert(map);
+    final text = Miscs.jsonEncoder.convert(map);
     final result = await AppRoute.editor(
       text: text,
       langCode: 'json',
diff --git a/lib/view/page/ping.dart b/lib/view/page/ping.dart
index 93fa702c..6eb93f05 100644
--- a/lib/view/page/ping.dart
+++ b/lib/view/page/ping.dart
@@ -3,7 +3,9 @@ import 'dart:async';
 import 'package:after_layout/after_layout.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/utils/misc.dart';
 import 'package:toolbox/view/widget/value_notifier.dart';
 
@@ -140,7 +142,7 @@ class _PingPageState extends State<PingPage>
         ),
         subtitle: Text(
           _buildPingSummary(result, unknown, ms),
-          style: textSize11,
+          style: UIs.textSize11,
         ),
         trailing: Text(
           '${_s.pingAvg}${result.statistic?.avg?.toStringAsFixed(2) ?? _s.unknown} $ms',
diff --git a/lib/view/page/private_key/edit.dart b/lib/view/page/private_key/edit.dart
index 7f1f2790..d5450448 100644
--- a/lib/view/page/private_key/edit.dart
+++ b/lib/view/page/private_key/edit.dart
@@ -4,7 +4,9 @@ import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/extension/numx.dart';
 import 'package:toolbox/core/utils/misc.dart';
 import 'package:toolbox/data/res/misc.dart';
@@ -103,7 +105,7 @@ class _PrivateKeyEditPageState extends State<PrivateKeyEditPage> {
                 },
                 child: Text(
                   _s.ok,
-                  style: textRed,
+                  style: UIs.textRed,
                 ),
               ),
             ],
@@ -113,7 +115,7 @@ class _PrivateKeyEditPageState extends State<PrivateKeyEditPage> {
       )
     ];
     return CustomAppBar(
-      title: Text(_s.edit, style: textSize18),
+      title: Text(_s.edit, style: UIs.textSize18),
       actions: widget.pki == null ? null : actions,
     );
   }
@@ -131,7 +133,7 @@ class _PrivateKeyEditPageState extends State<PrivateKeyEditPage> {
         }
         FocusScope.of(context).unfocus();
         setState(() {
-          _loading = centerSizedLoading;
+          _loading = UIs.centerSizedLoading;
         });
         try {
           final decrypted = await compute(decyptPem, [key, pwd]);
@@ -192,12 +194,12 @@ class _PrivateKeyEditPageState extends State<PrivateKeyEditPage> {
               return;
             }
             final size = (await file.stat()).size;
-            if (size > privateKeyMaxSize) {
+            if (size > Miscs.privateKeyMaxSize) {
               context.showSnackBar(
                 _s.fileTooLarge(
                   path,
                   size.convertBytes,
-                  privateKeyMaxSize.convertBytes,
+                  Miscs.privateKeyMaxSize.convertBytes,
                 ),
               );
               return;
@@ -216,7 +218,7 @@ class _PrivateKeyEditPageState extends State<PrivateKeyEditPage> {
           icon: Icons.password,
         ),
         SizedBox(height: MediaQuery.of(context).size.height * 0.1),
-        _loading ?? placeholder,
+        _loading ?? UIs.placeholder,
       ],
     );
   }
diff --git a/lib/view/page/private_key/list.dart b/lib/view/page/private_key/list.dart
index f3d75242..996343f1 100644
--- a/lib/view/page/private_key/list.dart
+++ b/lib/view/page/private_key/list.dart
@@ -4,7 +4,8 @@ import 'package:after_layout/after_layout.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/data/store/private_key.dart';
 import 'package:toolbox/locator.dart';
 
@@ -37,7 +38,7 @@ class _PrivateKeyListState extends State<PrivateKeysListPage>
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: CustomAppBar(
-        title: Text(_s.privateKey, style: textSize18),
+        title: Text(_s.privateKey, style: UIs.textSize18),
       ),
       body: _buildBody(),
       floatingActionButton: FloatingActionButton(
@@ -70,7 +71,7 @@ class _PrivateKeyListState extends State<PrivateKeysListPage>
                   ),
                 ),
                 title: Text(item.id),
-                subtitle: Text(item.type ?? _s.unknown, style: grey),
+                subtitle: Text(item.type ?? _s.unknown, style: UIs.textGrey),
                 onTap: () => AppRoute.keyEdit(pki: item).go(context),
                 trailing: const Icon(Icons.edit),
               ),
diff --git a/lib/view/page/process.dart b/lib/view/page/process.dart
index e8f50006..1a6054a3 100644
--- a/lib/view/page/process.dart
+++ b/lib/view/page/process.dart
@@ -3,7 +3,9 @@ import 'dart:async';
 import 'package:dartssh2/dartssh2.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/extension/uint8list.dart';
 import 'package:toolbox/core/utils/misc.dart';
 
@@ -126,7 +128,7 @@ class _ProcessPageState extends State<ProcessPage> {
     }
     Widget child;
     if (_result.procs.isEmpty) {
-      child = centerLoading;
+      child = UIs.centerLoading;
     } else {
       child = ListView.builder(
         itemCount: _result.procs.length,
@@ -157,7 +159,7 @@ class _ProcessPageState extends State<ProcessPage> {
         title: Text(proc.binary),
         subtitle: Text(
           proc.command,
-          style: grey,
+          style: UIs.textGrey,
           maxLines: 3,
           overflow: TextOverflow.fade,
         ),
@@ -198,7 +200,7 @@ class _ProcessPageState extends State<ProcessPage> {
             up: proc.cpu!.toStringAsFixed(1),
             down: 'cpu',
           ),
-        width13,
+        UIs.width13,
         if (proc.mem != null)
           TwoLineText(
             up: proc.mem!.toStringAsFixed(1),
diff --git a/lib/view/page/server/detail.dart b/lib/view/page/server/detail.dart
index 6c56e115..d03920a7 100644
--- a/lib/view/page/server/detail.dart
+++ b/lib/view/page/server/detail.dart
@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
 import 'package:toolbox/core/extension/order.dart';
 import 'package:toolbox/data/model/server/cpu.dart';
 import 'package:toolbox/data/model/server/server_private_info.dart';
@@ -41,7 +41,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
   late final _textFactor = _setting.textFactor.fetch();
 
   late final _cardBuildMap = Map.fromIterables(
-    defaultDetailCardOrder,
+    Defaults.detailCardOrder,
     [
       _buildUpTimeAndSys,
       _buildCPUView,
@@ -85,7 +85,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
     final buildFuncs = !_setting.moveOutServerTabFuncBtns.fetch();
     return Scaffold(
       appBar: CustomAppBar(
-        title: Text(si.spi.name, style: textSize18),
+        title: Text(si.spi.name, style: UIs.textSize18),
         actions: [
           IconButton(
             icon: const Icon(Icons.edit),
@@ -120,21 +120,21 @@ class _ServerDetailPageState extends State<ServerDetailPage>
     final percent = ss.cpu.usedPercent(coreIdx: 0).toInt();
     final details = [
       _buildDetailPercent(ss.cpu.user, 'user'),
-      width13,
+      UIs.width13,
       _buildDetailPercent(ss.cpu.idle, 'idle')
     ];
     if (ss.system == SystemType.linux) {
       details.addAll([
-        width13,
+        UIs.width13,
         _buildDetailPercent(ss.cpu.sys, 'sys'),
-        width13,
+        UIs.width13,
         _buildDetailPercent(ss.cpu.iowait, 'io'),
       ]);
     }
 
     return RoundRectCard(
       Padding(
-        padding: roundRectCardPadding,
+        padding: UIs.roundRectCardPadding,
         child: Column(mainAxisAlignment: MainAxisAlignment.center, children: [
           Row(
             mainAxisAlignment: MainAxisAlignment.spaceBetween,
@@ -142,14 +142,14 @@ class _ServerDetailPageState extends State<ServerDetailPage>
               _buildAnimatedText(
                 ValueKey(percent),
                 '$percent%',
-                textSize27,
+                UIs.textSize27,
               ),
               Row(
                 children: details,
               )
             ],
           ),
-          height13,
+          UIs.height13,
           _buildCPUProgress(ss.cpu)
         ]),
       ),
@@ -196,7 +196,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
     return LinearProgressIndicator(
       value: percentWithinOne,
       minHeight: 7,
-      backgroundColor: progressColor.resolve(context),
+      backgroundColor: DynamicColors.progress.resolve(context),
       color: primaryColor,
     );
   }
@@ -204,14 +204,18 @@ class _ServerDetailPageState extends State<ServerDetailPage>
   Widget _buildUpTimeAndSys(ServerStatus ss) {
     return RoundRectCard(
       Padding(
-        padding: roundRectCardPadding,
+        padding: UIs.roundRectCardPadding,
         child: Row(
           mainAxisAlignment: MainAxisAlignment.spaceBetween,
           children: [
-            Text(ss.sysVer, style: textSize11, textScaleFactor: _textFactor),
+            Text(
+              ss.sysVer,
+              style: UIs.textSize11,
+              textScaleFactor: _textFactor,
+            ),
             Text(
               ss.uptime,
-              style: textSize11,
+              style: UIs.textSize11,
               textScaleFactor: _textFactor,
             ),
           ],
@@ -228,7 +232,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
 
     return RoundRectCard(
       Padding(
-        padding: roundRectCardPadding,
+        padding: UIs.roundRectCardPadding,
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.center,
           mainAxisAlignment: MainAxisAlignment.center,
@@ -241,23 +245,25 @@ class _ServerDetailPageState extends State<ServerDetailPage>
                     _buildAnimatedText(
                       ValueKey(usedStr),
                       '$usedStr%',
-                      textSize27,
+                      UIs.textSize27,
                     ),
-                    width7,
-                    Text('of ${(ss.mem.total * 1024).convertBytes}',
-                        style: textSize13Grey)
+                    UIs.width7,
+                    Text(
+                      'of ${(ss.mem.total * 1024).convertBytes}',
+                      style: UIs.textSize13Grey,
+                    )
                   ],
                 ),
                 Row(
                   children: [
                     _buildDetailPercent(free, 'free'),
-                    width13,
+                    UIs.width13,
                     _buildDetailPercent(avail, 'avail'),
                   ],
                 ),
               ],
             ),
-            height13,
+            UIs.height13,
             _buildProgress(used)
           ],
         ),
@@ -266,12 +272,12 @@ class _ServerDetailPageState extends State<ServerDetailPage>
   }
 
   Widget _buildSwapView(ServerStatus ss) {
-    if (ss.swap.total == 0) return placeholder;
+    if (ss.swap.total == 0) return UIs.placeholder;
     final used = ss.swap.usedPercent * 100;
     final cached = ss.swap.cached / ss.swap.total * 100;
     return RoundRectCard(
       Padding(
-        padding: roundRectCardPadding,
+        padding: UIs.roundRectCardPadding,
         child: Column(
           crossAxisAlignment: CrossAxisAlignment.center,
           mainAxisAlignment: MainAxisAlignment.center,
@@ -281,16 +287,18 @@ class _ServerDetailPageState extends State<ServerDetailPage>
               children: [
                 Row(
                   children: [
-                    Text('${used.toStringAsFixed(0)}%', style: textSize27),
-                    width7,
-                    Text('of ${(ss.swap.total * 1024).convertBytes} ',
-                        style: textSize13Grey)
+                    Text('${used.toStringAsFixed(0)}%', style: UIs.textSize27),
+                    UIs.width7,
+                    Text(
+                      'of ${(ss.swap.total * 1024).convertBytes} ',
+                      style: UIs.textSize13Grey,
+                    )
                   ],
                 ),
                 _buildDetailPercent(cached, 'cached'),
               ],
             ),
-            height13,
+            UIs.height13,
             _buildProgress(used)
           ],
         ),
@@ -317,12 +325,12 @@ class _ServerDetailPageState extends State<ServerDetailPage>
                     children: [
                       Text(
                         '${disk.usedPercent}% of ${disk.size}',
-                        style: textSize11,
+                        style: UIs.textSize11,
                         textScaleFactor: _textFactor,
                       ),
                       Text(
                         disk.path,
-                        style: textSize11,
+                        style: UIs.textSize11,
                         textScaleFactor: _textFactor,
                       )
                     ],
@@ -334,7 +342,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
         .toList();
     return RoundRectCard(
       Padding(
-        padding: roundRectCardPadding,
+        padding: UIs.roundRectCardPadding,
         child: Column(
           mainAxisAlignment: MainAxisAlignment.center,
           children: children,
@@ -364,7 +372,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
 
     return RoundRectCard(
       Padding(
-        padding: roundRectCardPadding,
+        padding: UIs.roundRectCardPadding,
         child: Column(
           children: children,
         ),
@@ -397,7 +405,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
             width: width,
             child: Text(
               device,
-              style: textSize11,
+              style: UIs.textSize11,
               textScaleFactor: _textFactor,
               maxLines: 1,
               overflow: TextOverflow.ellipsis,
@@ -407,7 +415,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
             width: width,
             child: Text(
               '${ns.speedIn(device: device)} | ${ns.sizeIn(device: device)}',
-              style: textSize11,
+              style: UIs.textSize11,
               textAlign: TextAlign.center,
               textScaleFactor: 0.87 * _textFactor,
             ),
@@ -416,7 +424,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
             width: width,
             child: Text(
               '${ns.speedOut(device: device)} | ${ns.sizeOut(device: device)}',
-              style: textSize11,
+              style: UIs.textSize11,
               textAlign: TextAlign.right,
               textScaleFactor: 0.87 * _textFactor,
             ),
@@ -429,7 +437,7 @@ class _ServerDetailPageState extends State<ServerDetailPage>
   Widget _buildTemperature(ServerStatus ss) {
     final temps = ss.temps;
     if (temps.isEmpty) {
-      return placeholder;
+      return UIs.placeholder;
     }
     final List<Widget> children = [
       const Row(
@@ -449,19 +457,19 @@ class _ServerDetailPageState extends State<ServerDetailPage>
           children: [
             Text(
               key,
-              style: textSize11,
+              style: UIs.textSize11,
               textScaleFactor: _textFactor,
             ),
             Text(
               '${temps.get(key)}°C',
-              style: textSize11,
+              style: UIs.textSize11,
               textScaleFactor: _textFactor,
             ),
           ],
         )));
     return RoundRectCard(
       Padding(
-        padding: roundRectCardPadding,
+        padding: UIs.roundRectCardPadding,
         child: Column(children: children),
       ),
     );
diff --git a/lib/view/page/server/edit.dart b/lib/view/page/server/edit.dart
index 19ef30b4..dbc50b3c 100644
--- a/lib/view/page/server/edit.dart
+++ b/lib/view/page/server/edit.dart
@@ -1,7 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 
 import '../../../core/route.dart';
 import '../../../data/model/server/private_key_info.dart';
@@ -123,7 +125,7 @@ class _ServerEditPageState extends State<ServerEditPage> {
                 context.pop();
                 context.pop(true);
               },
-              child: Text(_s.ok, style: textRed),
+              child: Text(_s.ok, style: UIs.textRed),
             ),
           ],
         );
@@ -132,7 +134,7 @@ class _ServerEditPageState extends State<ServerEditPage> {
     );
     final actions = widget.spi != null ? [delBtn] : null;
     return CustomAppBar(
-      title: Text(_s.edit, style: textSize18),
+      title: Text(_s.edit, style: UIs.textSize18),
       actions: actions,
     );
   }
@@ -271,7 +273,7 @@ class _ServerEditPageState extends State<ServerEditPage> {
             subtitle: Text(
               e.type ?? _s.unknown,
               textAlign: TextAlign.start,
-              style: grey,
+              style: UIs.textGrey,
             ),
             trailing: _buildRadio(index, e),
           );
diff --git a/lib/view/page/server/tab.dart b/lib/view/page/server/tab.dart
index 5c51981f..62601963 100644
--- a/lib/view/page/server/tab.dart
+++ b/lib/view/page/server/tab.dart
@@ -4,7 +4,7 @@ import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:get_it/get_it.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/core/extension/media_queryx.dart';
 import 'package:toolbox/core/extension/ssh_client.dart';
 import 'package:toolbox/data/model/app/shell_func.dart';
@@ -127,7 +127,7 @@ class _ServerPageState extends State<ServerPage>
         if (index == 0 && buildTags) return _buildTagsSwitcher(provider);
 
         // Issue #130
-        if (index == count - 1) return height77;
+        if (index == count - 1) return UIs.height77;
 
         if (buildTags) index--;
         return _buildEachServerCard(provider.servers[filtered[index]]);
@@ -173,7 +173,7 @@ class _ServerPageState extends State<ServerPage>
 
   Widget _buildEachServerCard(Server? si) {
     if (si == null) {
-      return placeholder;
+      return UIs.placeholder;
     }
 
     return RoundRectCard(
@@ -243,7 +243,7 @@ class _ServerPageState extends State<ServerPage>
 
   List<Widget> _buildFlipedCard(Server srv) {
     return [
-      height13,
+      UIs.height13,
       Row(
         mainAxisAlignment: MainAxisAlignment.spaceAround,
         children: [
@@ -273,7 +273,7 @@ class _ServerPageState extends State<ServerPage>
   List<Widget> _buildNormalCard(ServerStatus ss, ServerPrivateInfo spi) {
     final rootDisk = findRootDisk(ss.disk);
     return [
-      height13,
+      UIs.height13,
       Padding(
         padding: const EdgeInsets.symmetric(horizontal: 13),
         child: Row(
@@ -289,7 +289,7 @@ class _ServerPageState extends State<ServerPage>
           ],
         ),
       ),
-      height13,
+      UIs.height13,
       if (_setting.moveOutServerTabFuncBtns.fetch() &&
           // Discussion #146
           !_setting.serverTabUseOldUI.fetch())
@@ -330,7 +330,7 @@ class _ServerPageState extends State<ServerPage>
             children: [
               Text(
                 spi.name,
-                style: textSize13Bold,
+                style: UIs.textSize13Bold,
                 textScaleFactor: 1.0,
               ),
               const Icon(
@@ -363,14 +363,14 @@ class _ServerPageState extends State<ServerPage>
         onTap: () => _showFailReason(ss),
         child: Text(
           _s.viewErr,
-          style: textSize11Grey,
+          style: UIs.textSize11Grey,
           textScaleFactor: 1.0,
         ),
       );
     }
     return Text(
       topRightStr,
-      style: textSize11Grey,
+      style: UIs.textSize11Grey,
       textScaleFactor: 1.0,
     );
   }
@@ -409,14 +409,14 @@ class _ServerPageState extends State<ServerPage>
         const SizedBox(height: 5),
         Text(
           up,
-          style: textSize9Grey,
+          style: UIs.textSize9Grey,
           textAlign: TextAlign.center,
           textScaleFactor: 1.0,
         ),
         const SizedBox(height: 3),
         Text(
           down,
-          style: textSize9Grey,
+          style: UIs.textSize9Grey,
           textAlign: TextAlign.center,
           textScaleFactor: 1.0,
         )
@@ -444,7 +444,7 @@ class _ServerPageState extends State<ServerPage>
             child: Text(
               '${percent.toStringAsFixed(1)}%',
               textAlign: TextAlign.center,
-              style: textSize11,
+              style: UIs.textSize11,
               textScaleFactor: 1.0,
             ),
           ),
diff --git a/lib/view/page/setting/entry.dart b/lib/view/page/setting/entry.dart
index 5d8e59c0..520cbdab 100644
--- a/lib/view/page/setting/entry.dart
+++ b/lib/view/page/setting/entry.dart
@@ -7,8 +7,10 @@ import 'package:flutter_highlight/theme_map.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:toolbox/core/extension/colorx.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/extension/locale.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/core/extension/stringx.dart';
 
 import '../../../core/persistant_store.dart';
@@ -153,7 +155,7 @@ class _SettingPageState extends State<SettingPage> {
       child: Center(
         child: Text(
           text,
-          style: grey,
+          style: UIs.textGrey,
         ),
       ),
     );
@@ -245,7 +247,7 @@ class _SettingPageState extends State<SettingPage> {
         }
         return ListTile(
           title: Text(_s.autoCheckUpdate),
-          subtitle: Text(display, style: grey),
+          subtitle: Text(display, style: UIs.textGrey),
           onTap: () => doUpdate(ctx, force: true),
           trailing: StoreSwitch(prop: _setting.autoCheckAppUpdate),
         );
@@ -269,7 +271,7 @@ class _SettingPageState extends State<SettingPage> {
       ),
       subtitle: Text(
         _s.willTakEeffectImmediately,
-        style: grey,
+        style: UIs.textGrey,
       ),
       onTap: () {
         _updateIntervalKey.currentState?.showButtonMenu();
@@ -290,7 +292,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             '${_updateInterval.value} ${_s.second}',
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -422,7 +424,7 @@ class _SettingPageState extends State<SettingPage> {
         _s.maxRetryCount,
         textAlign: TextAlign.start,
       ),
-      subtitle: Text(help, style: grey),
+      subtitle: Text(help, style: UIs.textGrey),
       onTap: () {
         _maxRetryKey.currentState?.showButtonMenu();
       },
@@ -437,7 +439,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             '${_maxRetryCount.value} ${_s.times}',
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
         listenable: _maxRetryCount,
@@ -477,7 +479,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             _buildThemeModeStr(_nightMode.value),
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -524,7 +526,7 @@ class _SettingPageState extends State<SettingPage> {
           _pushToken.value = text;
           return Text(
             text ?? _s.nullToken,
-            style: grey,
+            style: UIs.textGrey,
             overflow: TextOverflow.ellipsis,
             maxLines: 1,
           );
@@ -539,7 +541,7 @@ class _SettingPageState extends State<SettingPage> {
       title: Text(_s.font),
       trailing: Text(
         fontName ?? _s.notSelected,
-        style: textSize15,
+        style: UIs.textSize15,
       ),
       onTap: () {
         context.showRoundDialog(
@@ -574,7 +576,7 @@ class _SettingPageState extends State<SettingPage> {
         _setting.fontPath.put(path);
       } else {
         final fontFile = File(path);
-        final newPath = '${await fontDir}/${path.split('/').last}';
+        final newPath = '${await Paths.font}/${path.split('/').last}';
         await fontFile.copy(newPath);
         _setting.fontPath.put(newPath);
       }
@@ -600,7 +602,7 @@ class _SettingPageState extends State<SettingPage> {
         title: Text(_s.fontSize),
         trailing: Text(
           _termFontSize.value.toString(),
-          style: textSize15,
+          style: UIs.textSize15,
         ),
         onTap: () => _showFontSizeDialog(_termFontSize, _setting.termFontSize),
       ),
@@ -671,7 +673,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             _s.languageName,
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -681,7 +683,7 @@ class _SettingPageState extends State<SettingPage> {
   Widget _buildSSHVirtualKeyAutoOff() {
     return ListTile(
       title: Text(_s.sshVirtualKeyAutoOff),
-      subtitle: const Text('Ctrl & Alt', style: grey),
+      subtitle: const Text('Ctrl & Alt', style: UIs.textGrey),
       trailing: StoreSwitch(prop: _setting.sshVirtualKeyAutoOff),
     );
   }
@@ -709,7 +711,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             _editorTheme.value,
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -742,7 +744,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             _editorDarkTheme.value,
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -768,7 +770,7 @@ class _SettingPageState extends State<SettingPage> {
   Widget _buildFullScreenJitter() {
     return ListTile(
       title: Text(_s.fullScreenJitter),
-      subtitle: Text(_s.fullScreenJitterHelp, style: grey),
+      subtitle: Text(_s.fullScreenJitterHelp, style: UIs.textGrey),
       trailing: StoreSwitch(prop: _setting.fullScreenJitter),
     );
   }
@@ -799,7 +801,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             degrees[_rotateQuarter.value],
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -834,7 +836,7 @@ class _SettingPageState extends State<SettingPage> {
     ).toList();
     return ListTile(
       title: Text(_s.keyboardType),
-      subtitle: Text(_s.keyboardCompatibility, style: grey),
+      subtitle: Text(_s.keyboardCompatibility, style: UIs.textGrey),
       trailing: ValueBuilder(
         listenable: _keyboardType,
         build: () => PopupMenuButton<int>(
@@ -847,7 +849,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             names[_keyboardType.value],
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -939,7 +941,7 @@ class _SettingPageState extends State<SettingPage> {
           },
           child: Text(
             _netViewType.value.l10n(_s),
-            style: textSize15,
+            style: UIs.textSize15,
           ),
         ),
       ),
@@ -952,7 +954,7 @@ class _SettingPageState extends State<SettingPage> {
   Widget _buildAutoUpdateHomeWidget() {
     return ListTile(
       title: Text(_s.autoUpdateHomeWidget),
-      subtitle: Text(_s.whenOpenApp, style: grey),
+      subtitle: Text(_s.whenOpenApp, style: UIs.textGrey),
       trailing: StoreSwitch(prop: _setting.autoUpdateHomeWidget),
     );
   }
@@ -993,7 +995,7 @@ class _SettingPageState extends State<SettingPage> {
   Widget _buildMoveOutServerFuncBtns() {
     return ListTile(
       title: Text(_s.moveOutServerFuncBtns),
-      subtitle: Text(_s.moveOutServerFuncBtnsHelp, style: textSize13Grey),
+      subtitle: Text(_s.moveOutServerFuncBtnsHelp, style: UIs.textSize13Grey),
       trailing: StoreSwitch(prop: _setting.moveOutServerTabFuncBtns),
     );
   }
@@ -1021,7 +1023,7 @@ class _SettingPageState extends State<SettingPage> {
         title: Text(_s.fontSize),
         trailing: Text(
           _editorFontSize.value.toString(),
-          style: textSize15,
+          style: UIs.textSize15,
         ),
         onTap: () =>
             _showFontSizeDialog(_editorFontSize, _setting.editorFontSize),
@@ -1069,7 +1071,7 @@ class _SettingPageState extends State<SettingPage> {
   Widget _buildSftpRmrfDir() {
     return ListTile(
       title: const Text('rm -rf'),
-      subtitle: Text(_s.sftpRmrfDirSummary, style: grey),
+      subtitle: Text(_s.sftpRmrfDirSummary, style: UIs.textGrey),
       trailing: StoreSwitch(prop: _setting.sftpRmrfDir),
     );
   }
diff --git a/lib/view/page/setting/virt_key.dart b/lib/view/page/setting/virt_key.dart
index 71087f12..d82acd33 100644
--- a/lib/view/page/setting/virt_key.dart
+++ b/lib/view/page/setting/virt_key.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/extension/order.dart';
 import 'package:toolbox/core/utils/platform.dart';
 import 'package:toolbox/data/model/ssh/virtual_key.dart';
@@ -55,7 +55,7 @@ class _SSHVirtKeySettingPageState extends State<SSHVirtKeySettingPage> {
           key: ValueKey(idx),
           ListTile(
             title: _buildTitle(key),
-            subtitle: help == null ? null : Text(help, style: grey),
+            subtitle: help == null ? null : Text(help, style: UIs.textGrey),
             leading: _buildCheckBox(keys, key, idx, idx < keys.length),
             trailing: isDesktop ? null : const Icon(Icons.drag_handle),
           ),
diff --git a/lib/view/page/snippet/edit.dart b/lib/view/page/snippet/edit.dart
index 445226b3..5ef486db 100644
--- a/lib/view/page/snippet/edit.dart
+++ b/lib/view/page/snippet/edit.dart
@@ -1,7 +1,8 @@
 import 'package:after_layout/after_layout.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/view/widget/input_field.dart';
 
 import '../../../data/model/server/snippet.dart';
@@ -56,7 +57,7 @@ class _SnippetEditPageState extends State<SnippetEditPage>
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: CustomAppBar(
-        title: Text(_s.edit, style: textSize18),
+        title: Text(_s.edit, style: UIs.textSize18),
         actions: _buildAppBarActions(),
       ),
       body: _buildBody(),
diff --git a/lib/view/page/snippet/list.dart b/lib/view/page/snippet/list.dart
index 3d581fbc..706cb338 100644
--- a/lib/view/page/snippet/list.dart
+++ b/lib/view/page/snippet/list.dart
@@ -1,7 +1,7 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/core/extension/order.dart';
 
 import '../../../core/utils/misc.dart';
@@ -83,7 +83,7 @@ class _SnippetListPageState extends State<SnippetListPage> {
             all: _s.all,
             width: _media.size.width,
           ),
-          footer: height77,
+          footer: UIs.height77,
           buildDefaultDragHandles: false,
           itemBuilder: (context, idx) {
             final snippet = filtered.elementAt(idx);
@@ -111,7 +111,7 @@ class _SnippetListPageState extends State<SnippetListPage> {
           snippet.note ?? snippet.script,
           overflow: TextOverflow.ellipsis,
           maxLines: 3,
-          style: grey,
+          style: UIs.textGrey,
         ),
         trailing: Row(
           mainAxisSize: MainAxisSize.min,
diff --git a/lib/view/page/ssh_term.dart b/lib/view/page/ssh_term.dart
index 492501e8..f669a7a6 100644
--- a/lib/view/page/ssh_term.dart
+++ b/lib/view/page/ssh_term.dart
@@ -7,7 +7,9 @@ import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:provider/provider.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:xterm/xterm.dart';
 
 import '../../core/route.dart';
diff --git a/lib/view/page/storage/local.dart b/lib/view/page/storage/local.dart
index b605e396..da28548e 100644
--- a/lib/view/page/storage/local.dart
+++ b/lib/view/page/storage/local.dart
@@ -2,7 +2,9 @@ import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/data/model/sftp/req.dart';
 import 'package:toolbox/data/provider/server.dart';
 import 'package:toolbox/data/provider/sftp.dart';
@@ -47,7 +49,7 @@ class _LocalStoragePageState extends State<LocalStoragePage> {
         _path = LocalPath(widget.initDir!);
       });
     } else {
-      sftpDir.then((dir) {
+      Paths.sftp.then((dir) {
         setState(() {
           _path = LocalPath(dir);
         });
@@ -165,12 +167,13 @@ class _LocalStoragePageState extends State<LocalStoragePage> {
               ? const Icon(Icons.folder)
               : const Icon(Icons.insert_drive_file),
           title: Text(fileName),
-          subtitle: isDir ? null : Text(stat.size.convertBytes, style: grey),
+          subtitle:
+              isDir ? null : Text(stat.size.convertBytes, style: UIs.textGrey),
           trailing: Text(
             stat.modified
                 .toString()
                 .substring(0, stat.modified.toString().length - 4),
-            style: grey,
+            style: UIs.textGrey,
           ),
           onLongPress: () {
             if (!isDir) return;
@@ -242,7 +245,7 @@ class _LocalStoragePageState extends State<LocalStoragePage> {
             onTap: () async {
               context.pop();
               final stat = await file.stat();
-              if (stat.size > editorMaxSize) {
+              if (stat.size > Miscs.editorMaxSize) {
                 context.showRoundDialog(
                   title: Text(_s.attention),
                   child: Text(_s.fileTooLarge(fileName, stat.size, '1m')),
diff --git a/lib/view/page/storage/sftp.dart b/lib/view/page/storage/sftp.dart
index b4bbfc83..5d836d05 100644
--- a/lib/view/page/storage/sftp.dart
+++ b/lib/view/page/storage/sftp.dart
@@ -4,7 +4,9 @@ import 'package:after_layout/after_layout.dart';
 import 'package:dartssh2/dartssh2.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/extension/sftpfile.dart';
 import 'package:toolbox/data/res/logger.dart';
 import 'package:toolbox/data/res/misc.dart';
@@ -267,7 +269,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
 
   Widget _buildFileView() {
     if (_status.files == null) {
-      return centerLoading;
+      return UIs.centerLoading;
     }
 
     if (_status.files!.isEmpty) {
@@ -293,7 +295,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
     final isDir = file.attr.isDirectory;
     final trailing = Text(
       '${getTime(file.attr.modifyTime)}\n${file.attr.mode?.str ?? ''}',
-      style: grey,
+      style: UIs.textGrey,
       textAlign: TextAlign.right,
     );
     return RoundRectCard(ListTile(
@@ -304,7 +306,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
           ? null
           : Text(
               (file.attr.size ?? 0).convertBytes,
-              style: grey,
+              style: UIs.textGrey,
             ),
       onTap: () {
         if (isDir) {
@@ -362,11 +364,11 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
 
   Future<void> _edit(BuildContext context, SftpName name) async {
     final size = name.attr.size;
-    if (size == null || size > editorMaxSize) {
+    if (size == null || size > Miscs.editorMaxSize) {
       context.showSnackBar(_s.fileTooLarge(
         name.filename,
         size ?? 0,
-        editorMaxSize,
+        Miscs.editorMaxSize,
       ));
       return;
     }
@@ -469,7 +471,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
             }
             _listDir();
           },
-          child: Text(_s.delete, style: textRed),
+          child: Text(_s.delete, style: UIs.textRed),
         ),
       ],
     );
@@ -510,7 +512,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
             context.pop();
             _listDir();
           },
-          child: Text(_s.ok, style: textRed),
+          child: Text(_s.ok, style: UIs.textRed),
         ),
       ],
     );
@@ -550,7 +552,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
             context.pop();
             _listDir();
           },
-          child: Text(_s.ok, style: textRed),
+          child: Text(_s.ok, style: UIs.textRed),
         ),
       ],
     );
@@ -588,7 +590,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
             context.pop();
             _listDir();
           },
-          child: Text(_s.rename, style: textRed),
+          child: Text(_s.rename, style: UIs.textRed),
         ),
       ],
     );
@@ -623,7 +625,7 @@ class _SftpPageState extends State<SftpPage> with AfterLayoutMixin {
   }
 
   Future<String> _getLocalPath(String remotePath) async {
-    return '${await sftpDir}$remotePath';
+    return '${await Paths.sftp}$remotePath';
   }
 
   /// Only return true if the path is changed
diff --git a/lib/view/page/storage/sftp_mission.dart b/lib/view/page/storage/sftp_mission.dart
index d632702d..7e04500b 100644
--- a/lib/view/page/storage/sftp_mission.dart
+++ b/lib/view/page/storage/sftp_mission.dart
@@ -1,8 +1,9 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
 import 'package:provider/provider.dart';
+import 'package:toolbox/core/extension/context/common.dart';
 import 'package:toolbox/core/extension/datetime.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/core/route.dart';
 import 'package:toolbox/locator.dart';
 
@@ -34,7 +35,7 @@ class _SftpMissionPageState extends State<SftpMissionPage> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: CustomAppBar(
-        title: Text(_s.mission, style: textSize18),
+        title: Text(_s.mission, style: UIs.textSize18),
       ),
       body: _buildBody(),
     );
@@ -134,12 +135,7 @@ class _SftpMissionPageState extends State<SftpMissionPage> {
           overflow: TextOverflow.ellipsis,
           maxLines: 1,
         ),
-        subtitle: subtitle == null
-            ? null
-            : Text(
-                subtitle,
-                style: grey,
-              ),
+        subtitle: subtitle == null ? null : Text(subtitle, style: UIs.textGrey),
         trailing: trailing,
       ),
     );
diff --git a/lib/view/widget/popup_menu.dart b/lib/view/widget/popup_menu.dart
index 2cc8b066..bfc4948c 100644
--- a/lib/view/widget/popup_menu.dart
+++ b/lib/view/widget/popup_menu.dart
@@ -12,7 +12,7 @@ class PopupMenu<T> extends StatelessWidget {
     super.key,
     required this.items,
     required this.onSelected,
-    this.child = popMenuChild,
+    this.child = UIs.popMenuChild,
     this.padding = const EdgeInsets.all(7),
     this.initialValue,
   });
diff --git a/lib/view/widget/server_func_btns.dart b/lib/view/widget/server_func_btns.dart
index 3b73b81c..3b684082 100644
--- a/lib/view/widget/server_func_btns.dart
+++ b/lib/view/widget/server_func_btns.dart
@@ -2,7 +2,9 @@ import 'dart:io';
 
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/l10n.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
+import 'package:toolbox/core/extension/context/snackbar.dart';
 import 'package:toolbox/core/extension/ssh_client.dart';
 import 'package:toolbox/core/extension/uint8list.dart';
 import 'package:toolbox/data/model/pkg/manager.dart';
diff --git a/lib/view/widget/tag.dart b/lib/view/widget/tag.dart
index dba42829..1f8e8540 100644
--- a/lib/view/widget/tag.dart
+++ b/lib/view/widget/tag.dart
@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
-import 'package:toolbox/core/extension/context.dart';
+import 'package:toolbox/core/extension/context/common.dart';
+import 'package:toolbox/core/extension/context/dialog.dart';
 import 'package:toolbox/data/res/ui.dart';
 import 'package:toolbox/view/widget/input_field.dart';
 import 'package:toolbox/view/widget/round_rect_card.dart';
@@ -29,7 +30,7 @@ class TagBtn extends StatelessWidget {
         content,
         textAlign: TextAlign.center,
         textScaleFactor: 1.0,
-        style: isEnable ? textSize13 : textSize13Grey,
+        style: isEnable ? UIs.textSize13 : UIs.textSize13Grey,
       ),
       onTap: onTap,
     );
@@ -107,7 +108,7 @@ class _TagEditorState extends State<TagEditor> {
           Text(
             '#$tag',
             textAlign: TextAlign.center,
-            style: isAdd ? textSize13Grey : textSize13,
+            style: isAdd ? UIs.textSize13Grey : UIs.textSize13,
             textScaleFactor: 1.0,
           ),
           const SizedBox(width: 4.0),
@@ -211,7 +212,7 @@ class _TagPickerState<T extends TagPickable> extends State<TagPicker<T>> {
     final children = <Widget>[];
     if (widget.tags.isNotEmpty) {
       children.add(Text(_s.tag));
-      children.add(height13);
+      children.add(UIs.height13);
       children.add(SizedBox(
         height: _kTagBtnHeight,
         width: _media.size.width * 0.7,
@@ -220,7 +221,7 @@ class _TagPickerState<T extends TagPickable> extends State<TagPicker<T>> {
     }
     if (widget.items.isNotEmpty) {
       children.add(Text(_s.all));
-      children.add(height13);
+      children.add(UIs.height13);
       children.add(SizedBox(
         height: _kTagBtnHeight,
         width: _media.size.width * 0.7,
@@ -313,7 +314,7 @@ class TagSwitcher extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    if (tags.isEmpty) return placeholder;
+    if (tags.isEmpty) return UIs.placeholder;
     final items = <String?>[null, ...tags];
     return Container(
       height: _kTagBtnHeight,
diff --git a/lib/view/widget/two_line_text.dart b/lib/view/widget/two_line_text.dart
index 8f314218..76cb38e8 100644
--- a/lib/view/widget/two_line_text.dart
+++ b/lib/view/widget/two_line_text.dart
@@ -15,12 +15,12 @@ class TwoLineText extends StatelessWidget {
       children: [
         Text(
           up,
-          style: textSize15,
+          style: UIs.textSize15,
           overflow: TextOverflow.ellipsis,
         ),
         Text(
           down,
-          style: textSize11,
+          style: UIs.textSize11,
           overflow: TextOverflow.ellipsis,
         )
       ],
diff --git a/lib/view/widget/url_text.dart b/lib/view/widget/url_text.dart
index a63c5257..ab543495 100644
--- a/lib/view/widget/url_text.dart
+++ b/lib/view/widget/url_text.dart
@@ -82,7 +82,9 @@ class UrlText extends StatelessWidget {
   Widget build(BuildContext context) {
     return RichText(
       textAlign: textAlign ?? TextAlign.start,
-      text: TextSpan(children: getTextSpans(contentColor.resolve(context))),
+      text: TextSpan(
+        children: getTextSpans(DynamicColors.content.resolve(context)),
+      ),
     );
   }
 }