diff --git a/Preses/AppPres.cs b/Preses/AppPres.cs
new file mode 100644
index 0000000..c482542
--- /dev/null
+++ b/Preses/AppPres.cs
@@ -0,0 +1,18 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using MaterialDesignThemes.Wpf;
+
+namespace Sheas_Cealer.Preses;
+
+internal partial class AppPres : ObservableObject
+{
+    [ObservableProperty]
+    private bool? isLightTheme = null;
+    partial void OnIsLightThemeChanged(bool? value)
+    {
+        PaletteHelper paletteHelper = new();
+        Theme newTheme = paletteHelper.GetTheme();
+
+        newTheme.SetBaseTheme(value.HasValue ? value.GetValueOrDefault() ? BaseTheme.Light : BaseTheme.Dark : BaseTheme.Inherit);
+        paletteHelper.SetTheme(newTheme);
+    }
+}
\ No newline at end of file
diff --git a/Preses/MainPres.cs b/Preses/MainPres.cs
index 378f892..e84b03e 100644
--- a/Preses/MainPres.cs
+++ b/Preses/MainPres.cs
@@ -10,7 +10,7 @@ using File = System.IO.File;
 
 namespace Sheas_Cealer.Preses;
 
-internal partial class MainPres : ObservableObject
+internal partial class MainPres : AppPres
 {
     internal MainPres(string[] args)
     {
@@ -70,17 +70,6 @@ internal partial class MainPres : ObservableObject
         }
     }
 
-    [ObservableProperty]
-    private bool? isLightTheme = null;
-    partial void OnIsLightThemeChanged(bool? value)
-    {
-        PaletteHelper paletteHelper = new();
-        Theme newTheme = paletteHelper.GetTheme();
-
-        newTheme.SetBaseTheme(value.HasValue ? value.GetValueOrDefault() ? BaseTheme.Light : BaseTheme.Dark : BaseTheme.Inherit);
-        paletteHelper.SetTheme(newTheme);
-    }
-
     [ObservableProperty]
     private bool isNginxExist = File.Exists(MainConst.NginxPath);