diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
index 489808a..3863a4e 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
@@ -679,6 +679,7 @@ namespace JoyD.Windows.CS
                         btnBrushSize5.Visible = false;
                         btnBrushSize10.Visible = false;
                         btnBrushSize15.Visible = false;
+                        btnBrushSize25.Visible = false;
                         // 控制分隔条可见性：前后都没有显示的按钮，隐藏分隔条
                         if (toolStripSeparator != null)
                         {
@@ -699,6 +700,7 @@ namespace JoyD.Windows.CS
                         btnBrushSize5.Visible = false;
                         btnBrushSize10.Visible = false;
                         btnBrushSize15.Visible = false;
+                        btnBrushSize25.Visible = false;
                         // 控制分隔条可见性：前后都没有显示的按钮，隐藏分隔条
                         if (toolStripSeparator != null)
                         {
@@ -719,6 +721,7 @@ namespace JoyD.Windows.CS
                         btnBrushSize5.Visible = false;
                         btnBrushSize10.Visible = false;
                         btnBrushSize15.Visible = false;
+                        btnBrushSize25.Visible = false;
                         // 控制分隔条可见性：前后都没有显示的按钮，隐藏分隔条
                         if (toolStripSeparator != null)
                         {
@@ -739,6 +742,7 @@ namespace JoyD.Windows.CS
                         btnBrushSize5.Visible = false;
                         btnBrushSize10.Visible = false;
                         btnBrushSize15.Visible = false;
+                        btnBrushSize25.Visible = false;
                         // 控制分隔条可见性：只有前有按钮显示且后有按钮显示时才显示分隔条
                         // 在温差图绘制初始状态，画笔按钮默认隐藏，所以分隔条也隐藏
                         if (toolStripSeparator != null)