fix wpf interop

src/Windows/Avalonia.Win32.Interop/Wpf/WpfTopLevelImpl.cs

@@ -256,5 +256,7 @@ namespace Avalonia.Win32.Interop.Wpf
         public void SetTransparencyLevelHint(WindowTransparencyLevel transparencyLevel) { }
 
         public WindowTransparencyLevel TransparencyLevel { get; private set; }
+
+        public AcrylicPlatformCompensationLevels AcrylicCompensationLevels { get; } = new AcrylicPlatformCompensationLevels(1, 1, 1);
     }
 }