diff --git a/Directory.Build.props b/Directory.Build.props
index 544470a..7865bfc 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -1,5 +1,5 @@
 <Project>
 	<PropertyGroup>
-		<Version>0.6.3-beta.3</Version>
+		<Version>0.6.3-beta.4</Version>
 	</PropertyGroup>
 </Project>
\ No newline at end of file
diff --git a/ricaun.Revit.UI/Utils/RibbonThemeUtils.cs b/ricaun.Revit.UI/Utils/RibbonThemeUtils.cs
index 2aaa797..cbd80cb 100644
--- a/ricaun.Revit.UI/Utils/RibbonThemeUtils.cs
+++ b/ricaun.Revit.UI/Utils/RibbonThemeUtils.cs
@@ -46,7 +46,7 @@ public class RibbonThemeUtils
         /// <summary>
         /// Theme is Dark
         /// </summary>
-        public bool IsDark => !IsLight;
+        public static bool IsDark => !IsLight;
 
 #if NET47_OR_GREATER || NET
         static RibbonThemeUtils()