diff --git a/Bin/net40/SunnyUI.dll b/Bin/net40/SunnyUI.dll
index e4dd6444..dea2d02d 100644
Binary files a/Bin/net40/SunnyUI.dll and b/Bin/net40/SunnyUI.dll differ
diff --git a/Bin/net5.0-windows/SunnyUI.dll b/Bin/net5.0-windows/SunnyUI.dll
index a7ecc236..5753675c 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 fc620aed..1facb004 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 d4556fcf..ebbdebac 100644
--- a/SunnyUI/Controls/UIPanel.cs
+++ b/SunnyUI/Controls/UIPanel.cs
@@ -48,6 +48,7 @@ namespace Sunny.UI
             AutoScaleMode = AutoScaleMode.None;
             base.Font = UIFontColor.Font;
             base.MinimumSize = new System.Drawing.Size(1, 1);
+            SetStyleFlags(true, false);
         }
 
         protected void SetStyleFlags(bool supportTransparent = true, bool selectable = true, bool resizeRedraw = false)