diff --git a/src/Downkyi.Core/Bili/Web/Video.cs b/src/Downkyi.Core/Bili/Web/Video.cs
index e64f2e9..b65ea33 100644
--- a/src/Downkyi.Core/Bili/Web/Video.cs
+++ b/src/Downkyi.Core/Bili/Web/Video.cs
@@ -21,13 +21,6 @@ internal class Video : IVideo
 
         _input = input;
 
-        // 设置wbi keys
-        var info = LoginInfo.GetNavigationInfo();
-        var imgKey = info.Data.WbiImg.ImgUrl.Split('/').ToList().Last().Split('.')[0];
-        var subKey = info.Data.WbiImg.SubUrl.Split('/').ToList().Last().Split('.')[0];
-        var keys = new Tuple<string, string>(imgKey, subKey);
-        WbiSign.SetKey(keys);
-
         if (ParseEntrance.IsAvId(input) || ParseEntrance.IsAvUrl(input))
         {
             long avid = ParseEntrance.GetAvId(input);
diff --git a/src/Downkyi/App.axaml b/src/Downkyi/App.axaml
index fce40ba..e014aed 100644
--- a/src/Downkyi/App.axaml
+++ b/src/Downkyi/App.axaml
@@ -3,7 +3,8 @@
     xmlns="https://github.com/avaloniaui"
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
     xmlns:converter="using:Downkyi.Converter"
-    xmlns:local="using:Downkyi">
+    xmlns:local="using:Downkyi"
+    RequestedThemeVariant="Light">
     <Application.DataTemplates>
         <local:ViewLocator />
     </Application.DataTemplates>
diff --git a/src/Downkyi/ServiceLocator.cs b/src/Downkyi/ServiceLocator.cs
index 0c54da5..85be3c0 100644
--- a/src/Downkyi/ServiceLocator.cs
+++ b/src/Downkyi/ServiceLocator.cs
@@ -90,12 +90,12 @@ public static class ServiceLocator
     /// </summary>
     public static void ConfigureServices()
     {
+        if (_initialized) return;
+
         // Register services
-        if (!_initialized)
-        {
-            _initialized = true;
-            Ioc.Default.ConfigureServices(
-                new ServiceCollection()
+        _initialized = true;
+        Ioc.Default.ConfigureServices(
+            new ServiceCollection()
                 //Services
                 .AddScoped<BaseServices>()
                 .AddSingleton<IBroadcastEvent, BroadcastEvent>()
@@ -141,6 +141,5 @@ public static class ServiceLocator
                 .AddSingleton<PublicFavoritesViewModel>()
                 .AddSingleton<VideoDetailViewModel>()
                 .BuildServiceProvider());
-        }
     }
 }
\ No newline at end of file