diff --git a/SunnyUI/Controls/UIRoundProcess.cs b/SunnyUI/Controls/UIRoundProcess.cs
index 4e706e05..2aef4c2a 100644
--- a/SunnyUI/Controls/UIRoundProcess.cs
+++ b/SunnyUI/Controls/UIRoundProcess.cs
@@ -186,7 +186,7 @@ namespace Sunny.UI
             set
             {
                 foreColor2 = value;
-                Invalidate();
+                SetStyleCustom();
             }
         }