diff --git a/lib/common/conf.dart b/lib/common/conf.dart
index 025f7e1..575f582 100644
--- a/lib/common/conf.dart
+++ b/lib/common/conf.dart
@@ -2,6 +2,7 @@ import 'dart:io';
 
 import 'package:device_info_plus/device_info_plus.dart';
 import 'package:flutter_acrylic/flutter_acrylic.dart';
+import 'package:hexcolor/hexcolor.dart';
 import 'package:hive/hive.dart';
 import 'package:path_provider/path_provider.dart';
 import 'package:starcitizen_doctor/api/analytics.dart';
@@ -43,6 +44,10 @@ class AppConf {
 
   static late final WindowsDeviceInfo windowsDeviceInfo;
 
+  static Color? colorBackground;
+  static Color? colorMenu;
+  static Color? colorMica;
+
   static const isMSE =
       String.fromEnvironment("MSE", defaultValue: "false") == "true";
 
@@ -80,6 +85,11 @@ class AppConf {
     await SystemHelper.initPowershellPath();
     isRunningAdmin = await globalUIModel.checkAdmin();
 
+    /// init defaultColor
+    colorBackground = HexColor("#132431").withOpacity(.75);
+    colorMenu = HexColor("#132431").withOpacity(.95);
+    colorMica = HexColor("#0A3142");
+
     /// init windows
     await windowManager.ensureInitialized();
     windowManager.waitUntilReadyToShow().then((_) async {
@@ -100,7 +110,7 @@ class AppConf {
         );
       }
     });
-    await _checkUpdate();
+    await checkUpdate();
     AnalyticsApi.touch("launch");
   }
 
@@ -108,7 +118,7 @@ class AppConf {
     return "${AppConf.applicationSupportDir}/._upgrade";
   }
 
-  static Future<void> _checkUpdate() async {
+  static Future<void> checkUpdate() async {
     // clean path
     if (!isMSE) {
       final dir = Directory(getUpgradePath());
@@ -118,6 +128,7 @@ class AppConf {
     }
     try {
       networkVersionData = await Api.getAppVersion();
+      globalUIModel.checkActivityThemeColor();
       dPrint(
           "lastVersion=${networkVersionData?.lastVersion}  ${networkVersionData?.lastVersionCode}");
     } catch (e) {
diff --git a/lib/data/app_version_data.dart b/lib/data/app_version_data.dart
index a902b72..3dcf76d 100644
--- a/lib/data/app_version_data.dart
+++ b/lib/data/app_version_data.dart
@@ -5,7 +5,7 @@
 /// MSE_lastVersionCode : 27
 /// MSE_minVersionCode : 27
 /// p4kDownloadUrl : "https://p4k.42kit.com/Data.p4k"
-/// activityColors : {"enable":true,"startTime":1700236800000,"endTime":1701360000000,"background":"","menu":"","mica":""}
+/// activityColors : {"enable":true,"startTime":1700236800000,"endTime":1701360000000,"background":"#290859","menu":"#310666","mica":"#270452"}
 
 class AppVersionData {
   AppVersionData({
@@ -57,9 +57,9 @@ class AppVersionData {
 /// enable : true
 /// startTime : 1700236800000
 /// endTime : 1701360000000
-/// background : ""
-/// menu : ""
-/// mica : ""
+/// background : "#290859"
+/// menu : "#310666"
+/// mica : "#270452"
 
 class ActivityColors {
   ActivityColors({
@@ -79,8 +79,8 @@ class ActivityColors {
     mica = json['mica'];
   }
   bool? enable;
-  num? startTime;
-  num? endTime;
+  int? startTime;
+  int? endTime;
   String? background;
   String? menu;
   String? mica;
diff --git a/lib/global_ui_model.dart b/lib/global_ui_model.dart
index bdee570..e9764fc 100644
--- a/lib/global_ui_model.dart
+++ b/lib/global_ui_model.dart
@@ -1,11 +1,12 @@
 // ignore_for_file: use_build_context_synchronously
 
+import 'dart:async';
 import 'dart:io';
 
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:hexcolor/hexcolor.dart';
 import 'package:hive/hive.dart';
 
-import 'api/api.dart';
 import 'base/ui_model.dart';
 import 'common/conf.dart';
 import 'common/helper/system_helper.dart';
@@ -16,16 +17,13 @@ final globalUIModel = AppGlobalUIModel();
 final globalUIModelProvider = ChangeNotifierProvider((ref) => globalUIModel);
 
 class AppGlobalUIModel extends BaseUIModel {
+  Timer? activityThemeColorTimer;
 
-  String colorBackground = "#132431";
-  String colorMenu = "#122D42";
-  String colorMica = "#0A3142";
-
-  Future<bool> checkUpdate(BuildContext context, {bool init = true}) async {
+  Future<bool> doCheckUpdate(BuildContext context, {bool init = true}) async {
     if (AppConf.isMSE) return true;
     if (!init) {
       try {
-        AppConf.networkVersionData = await Api.getAppVersion();
+        await AppConf.checkUpdate();
       } catch (_) {}
     }
     await Future.delayed(const Duration(milliseconds: 100));
@@ -75,4 +73,45 @@ class AppGlobalUIModel extends BaseUIModel {
     await Future.delayed(const Duration(seconds: 2));
     exit(0);
   }
+
+  checkActivityThemeColor() {
+    if (activityThemeColorTimer != null) {
+      activityThemeColorTimer?.cancel();
+      activityThemeColorTimer = null;
+    }
+    if (AppConf.networkVersionData == null ||
+        AppConf.networkVersionData?.activityColors?.enable != true) return;
+
+    final startTime = AppConf.networkVersionData!.activityColors?.startTime;
+    final endTime = AppConf.networkVersionData!.activityColors?.endTime;
+    if (startTime == null || endTime == null) return;
+    final now = DateTime.now().millisecondsSinceEpoch;
+
+    dPrint("now == $now  start == $startTime end == $endTime");
+    if (now < startTime) {
+      activityThemeColorTimer = Timer(
+          Duration(milliseconds: startTime - now), checkActivityThemeColor);
+      dPrint("start Timer ....");
+    } else if (now >= startTime && now <= endTime) {
+      dPrint("update Color ....");
+      // update Color
+      final colorCfg = AppConf.networkVersionData!.activityColors;
+      AppConf.colorBackground =
+          HexColor(colorCfg?.background ?? "#132431").withOpacity(.75);
+      AppConf.colorMenu =
+          HexColor(colorCfg?.menu ?? "#132431").withOpacity(.95);
+      AppConf.colorMica = HexColor(colorCfg?.mica ?? "#0A3142");
+      notifyListeners();
+      // wait for end
+      activityThemeColorTimer =
+          Timer(Duration(milliseconds: endTime - now), checkActivityThemeColor);
+    } else {
+      dPrint("reset Color ....");
+      AppConf.colorBackground = HexColor("#132431").withOpacity(.75);
+      AppConf.colorMenu = HexColor("#132431").withOpacity(.95);
+      AppConf.colorMica = HexColor("#0A3142");
+      notifyListeners();
+    }
+    notifyListeners();
+  }
 }
diff --git a/lib/main.dart b/lib/main.dart
index 9320d07..00ac9af 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,6 +1,5 @@
 import 'package:desktop_webview_window/desktop_webview_window.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
-import 'package:hexcolor/hexcolor.dart';
 import 'package:starcitizen_doctor/base/ui_model.dart';
 import 'package:starcitizen_doctor/common/conf.dart';
 import 'package:starcitizen_doctor/ui/index_ui_model.dart';
@@ -31,16 +30,14 @@ class AppUI extends BaseUI {
       title: "StarCitizen Doctor",
       restorationScopeId: "Doctor",
       themeMode: ThemeMode.dark,
-      // theme: FluentThemeData(brightness: Brightness.light),
-      darkTheme: FluentThemeData(
+      theme: FluentThemeData(
         brightness: Brightness.dark,
         fontFamily: "SourceHanSansCN-Regular",
         navigationPaneTheme: NavigationPaneThemeData(
-          backgroundColor:
-              HexColor(globalUIModel.colorBackground).withOpacity(.75),
+          backgroundColor: AppConf.colorBackground,
         ),
-        menuColor: HexColor(globalUIModel.colorMenu).withOpacity(.95),
-        micaBackgroundColor: HexColor(globalUIModel.colorMica),
+        menuColor: AppConf.colorMenu,
+        micaBackgroundColor: AppConf.colorMica,
       ),
       debugShowCheckedModeBanner: false,
       home: BaseUIContainer(
@@ -58,7 +55,6 @@ class WindowButtons extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     final FluentThemeData theme = FluentTheme.of(context);
-
     return SizedBox(
       width: 138,
       height: 50,
diff --git a/lib/ui/about/about_ui_model.dart b/lib/ui/about/about_ui_model.dart
index 7df94e9..7859af2 100644
--- a/lib/ui/about/about_ui_model.dart
+++ b/lib/ui/about/about_ui_model.dart
@@ -9,7 +9,7 @@ class AboutUIModel extends BaseUIModel {
       launchUrlString("ms-windows-store://pdp/?productid=9NF3SWFWNKL1");
       return;
     }
-    final hasUpdate = await globalUIModel.checkUpdate(context!);
+    final hasUpdate = await globalUIModel.doCheckUpdate(context!);
     if (!hasUpdate) {
       if (mounted) showToast(context!, "已是最新版本");
     }
diff --git a/lib/ui/index_ui_model.dart b/lib/ui/index_ui_model.dart
index b96d3fc..9e1a73a 100644
--- a/lib/ui/index_ui_model.dart
+++ b/lib/ui/index_ui_model.dart
@@ -17,7 +17,7 @@ class IndexUIModel extends BaseUIModel {
   void initModel() {
     _checkRunTime();
     Future.delayed(const Duration(milliseconds: 300))
-        .then((value) => globalUIModel.checkUpdate(context!));
+        .then((value) => globalUIModel.doCheckUpdate(context!));
     super.initModel();
   }