diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index 846d2d27..9f24cf9d 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/Bin/net462/SunnyUI.dll b/Bin/net462/SunnyUI.dll
index e668a393..6a3d2fe6 100644
Binary files a/Bin/net462/SunnyUI.dll and b/Bin/net462/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/SunnyUI.dll b/Bin/net5.0-windows/SunnyUI.dll
index 912f144c..7327b256 100644
Binary files a/Bin/net5.0-windows/SunnyUI.dll and b/Bin/net5.0-windows/SunnyUI.dll differ
diff --git a/Bin/netcoreapp3.1/SunnyUI.dll b/Bin/netcoreapp3.1/SunnyUI.dll
index f613a1c0..b1209297 100644
Binary files a/Bin/netcoreapp3.1/SunnyUI.dll and b/Bin/netcoreapp3.1/SunnyUI.dll differ
diff --git a/SunnyUI/Controls/UIPanel.cs b/SunnyUI/Controls/UIPanel.cs
index 3103e5f0..83bb8bc5 100644
--- a/SunnyUI/Controls/UIPanel.cs
+++ b/SunnyUI/Controls/UIPanel.cs
@@ -19,6 +19,7 @@
  * 2020-01-01: V2.2.0 增加文件说明
  * 2020-04-25: V2.2.4 更新主题配置类
  * 2021-05-09: V3.0.3 增加双缓冲，减少闪烁
+ * 2021-09-03: V3.0.6 支持背景图片显示
 ******************************************************************************/
 
 using System;
@@ -313,7 +314,7 @@ namespace Sunny.UI
             GraphicsPath path = rect.CreateRoundedRectanglePath(radius, RadiusSides);
 
             //填充背景色
-            if (ShowFill && fillColor.IsValid())
+            if (BackgroundImage == null && ShowFill && fillColor.IsValid())
             {
                 OnPaintFill(e.Graphics, path);
             }