Enable acryllic material

src/Avalonia.Base/Rendering/Composition/Drawing/CompositionDrawingContext.cs

@@ -13,7 +13,7 @@ namespace Avalonia.Rendering.Composition;
 /// <summary>
 /// An IDrawingContextImpl implementation that builds <see cref="CompositionDrawList"/>
 /// </summary>
-internal class CompositionDrawingContext : IDrawingContextImpl
+internal class CompositionDrawingContext : IDrawingContextImpl, IDrawingContextWithAcrylicLikeSupport
 {
     private CompositionDrawListBuilder _builder = new();
     private int _drawOperationIndex;

src/Avalonia.Base/Rendering/Composition/Server/DrawingContextProxy.cs

@@ -15,7 +15,7 @@ namespace Avalonia.Rendering.Composition.Server;
 /// they have information about the full render transform (they are not)
 /// 2) Keeps the draw list for the VisualBrush contents of the current drawing operation.
 /// </summary>
-internal class CompositorDrawingContextProxy : IDrawingContextImpl
+internal class CompositorDrawingContextProxy : IDrawingContextImpl, IDrawingContextWithAcrylicLikeSupport
 {
     private IDrawingContextImpl _impl;
     private readonly VisualBrushRenderer _visualBrushRenderer;
@@ -170,4 +170,10 @@ internal class CompositorDrawingContextProxy : IDrawingContextImpl
             }
         }
     }
+
+    public void DrawRectangle(IExperimentalAcrylicMaterial material, RoundedRect rect)
+    {
+        if (_impl is IDrawingContextWithAcrylicLikeSupport acrylic) 
+            acrylic.DrawRectangle(material, rect);
+    }
 }