From 7aeea4d32d3a46a06ed3255784dcf0b3a1765471 Mon Sep 17 00:00:00 2001
From: lindexi <lindexi_gd@163.com>
Date: Thu, 5 Mar 2026 11:16:47 +0800
Subject: [PATCH] Revert "Adding TransparencyLevel property to
 CompositionTarget"

This reverts commit da0af790b15c62bb8d5f2e94ca6b3c904a79b4a2.
---
 .../CompositionTransparencyLevel.cs           | 10 ----------
 src/Avalonia.Base/composition-schema.xml      |  1 -
 src/Avalonia.Controls/TopLevel.cs             | 19 +------------------
 3 files changed, 1 insertion(+), 29 deletions(-)
 delete mode 100644 src/Avalonia.Base/Rendering/Composition/CompositionTransparencyLevel.cs

diff --git a/src/Avalonia.Base/Rendering/Composition/CompositionTransparencyLevel.cs b/src/Avalonia.Base/Rendering/Composition/CompositionTransparencyLevel.cs
deleted file mode 100644
index fd2abd75ee..0000000000
--- a/src/Avalonia.Base/Rendering/Composition/CompositionTransparencyLevel.cs
+++ /dev/null
@@ -1,10 +0,0 @@
-namespace Avalonia.Rendering.Composition;
-
-public enum CompositionTransparencyLevel : byte
-{
-    None = 0,
-    Transparent = 1,
-    Blur = 2,
-    AcrylicBlur = 3,
-    Mica = 4
-}
diff --git a/src/Avalonia.Base/composition-schema.xml b/src/Avalonia.Base/composition-schema.xml
index 7435e43e44..febf465042 100644
--- a/src/Avalonia.Base/composition-schema.xml
+++ b/src/Avalonia.Base/composition-schema.xml
@@ -58,7 +58,6 @@
         <Property Name="LastLayoutPassTiming" Type="LayoutPassTiming" Internal="true"/>
         <Property Name="Scaling" Type="double"/>
         <Property Name="PixelSize" Type="PixelSize" />
-        <Property Name="TransparencyLevel" Type="CompositionTransparencyLevel" />
     </Object>
     <KeyFrameAnimation Name="Scalar" Type="float"/>
     <KeyFrameAnimation Name="Double" Type="double"/>
diff --git a/src/Avalonia.Controls/TopLevel.cs b/src/Avalonia.Controls/TopLevel.cs
index 0bf3a5730f..a555b88b41 100644
--- a/src/Avalonia.Controls/TopLevel.cs
+++ b/src/Avalonia.Controls/TopLevel.cs
@@ -199,9 +199,7 @@ namespace Avalonia.Controls
 
             _scaling = ValidateScaling(impl.RenderScaling);
             _actualTransparencyLevel = PlatformImpl.TransparencyLevel;
-
-            _source.Renderer.CompositionTarget.TransparencyLevel =
-                ToCompositionTransparencyLevel(_actualTransparencyLevel);
+            
 
             
 
@@ -715,8 +713,6 @@ namespace Avalonia.Controls
             }
 
             ActualTransparencyLevel = transparencyLevel;
-            Renderer.CompositionTarget.TransparencyLevel =
-                ToCompositionTransparencyLevel(transparencyLevel);
         }
 
         protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
@@ -835,18 +831,5 @@ namespace Avalonia.Controls
 
             return scaling;
         }
-
-        private static CompositionTransparencyLevel ToCompositionTransparencyLevel(WindowTransparencyLevel level)
-        {
-            if (level == WindowTransparencyLevel.Transparent)
-                return CompositionTransparencyLevel.Transparent;
-            if (level == WindowTransparencyLevel.Blur)
-                return CompositionTransparencyLevel.Blur;
-            if (level == WindowTransparencyLevel.AcrylicBlur)
-                return CompositionTransparencyLevel.AcrylicBlur;
-            if (level == WindowTransparencyLevel.Mica)
-                return CompositionTransparencyLevel.Mica;
-            return CompositionTransparencyLevel.None;
-        }
     }
 }