diff --git a/SpineViewer/App.xaml b/SpineViewer/App.xaml
index 1eca518..8ad5e3f 100644
--- a/SpineViewer/App.xaml
+++ b/SpineViewer/App.xaml
@@ -8,8 +8,8 @@
     <Application.Resources>
         <ResourceDictionary>
             <ResourceDictionary.MergedDictionaries>
-                <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/SkinDefault.xaml"/>
                 <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/Theme.xaml"/>
+                <ResourceDictionary Source="pack://application:,,,/HandyControl;component/Themes/SkinDark.xaml"/>
                 <ResourceDictionary Source="/Resources/Geometries.xaml"/>
                 <ResourceDictionary Source="/Resources/Strings/zh.xaml"/>
             </ResourceDictionary.MergedDictionaries>