diff --git a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
index 7c328ef..d2e8dc5 100644
--- a/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
+++ b/Windows/CS/Framework4.0/Toprie/Toprie/Setting.cs
@@ -1375,49 +1375,6 @@ namespace JoyD.Windows.CS
             }
         }
         
-        /// <summary>
-        /// 在两点之间绘制方形路径，用于模拟方形画笔效果
-        /// </summary>
-        private void DrawLineAsRectangles(Graphics g, Brush brush, Point startPoint, Point endPoint, int halfSize)
-        {
-            // 计算两点之间的距离和方向
-            int dx = Math.Abs(endPoint.X - startPoint.X);
-            int dy = Math.Abs(endPoint.Y - startPoint.Y);
-            int sx = startPoint.X < endPoint.X ? 1 : -1;
-            int sy = startPoint.Y < endPoint.Y ? 1 : -1;
-            int err = dx - dy;
-            int e2;
-            
-            Point currentPoint = startPoint;
-            
-            // 使用Bresenham算法遍历直线上的每个点
-            while (true)
-            {
-                // 在当前点绘制方形
-                g.FillRectangle(brush, 
-                    currentPoint.X - halfSize, 
-                    currentPoint.Y - halfSize, 
-                    halfSize * 2, 
-                    halfSize * 2);
-                
-                // 检查是否到达终点
-                if (currentPoint.X == endPoint.X && currentPoint.Y == endPoint.Y)
-                    break;
-                
-                e2 = 2 * err;
-                if (e2 > -dy)
-                {
-                    err -= dy;
-                    currentPoint.X += sx;
-                }
-                if (e2 < dx)
-                {
-                    err += dx;
-                    currentPoint.Y += sy;
-                }
-            }
-        }
-        
         /// <summary>
         /// 将控件坐标转换为图像坐标
         /// </summary>
@@ -1703,22 +1660,23 @@ namespace JoyD.Windows.CS
                             if (_lastDrawPoint == Point.Empty)
                             {                                 
                                 _lastDrawPoint = imagePoint;
-                                // 绘制起始点的方形（擦除区域）
-                                int halfSize = adjustedBrushSize / 2;
-                                g.FillRectangle(Brushes.Transparent, 
-                                    imagePoint.X - halfSize, 
-                                    imagePoint.Y - halfSize, 
+                                // 绘制起始点的圆形（擦除区域）
+                                int radius = adjustedBrushSize / 2;
+                                g.FillEllipse(Brushes.Transparent, 
+                                    imagePoint.X - radius, 
+                                    imagePoint.Y - radius, 
                                     adjustedBrushSize, 
                                     adjustedBrushSize);
                             }
                             else
                             {                                 
-                                // 绘制方形路径进行擦除
-                                int halfSize = adjustedBrushSize / 2;
-                                using (SolidBrush brush = new SolidBrush(Color.Transparent))
-                                {   
-                                    // 计算两点之间的直线区域，并绘制方形
-                                    DrawLineAsRectangles(g, brush, _lastDrawPoint, imagePoint, halfSize);
+                                // 使用透明色绘制粗线条进行擦除，使用调整后的画笔大小
+                                using (Pen pen = new Pen(Color.Transparent, adjustedBrushSize))
+                                {                                      
+                                    pen.StartCap = LineCap.Round;
+                                    pen.EndCap = LineCap.Round;
+                                    pen.LineJoin = LineJoin.Round;
+                                    g.DrawLine(pen, _lastDrawPoint, imagePoint);
                                 }
                                 // 更新上一个点
                                 _lastDrawPoint = imagePoint;
@@ -1740,23 +1698,18 @@ namespace JoyD.Windows.CS
                                 if (_lastDrawPoint == Point.Empty)
                                 {                                    
                                     _lastDrawPoint = imagePoint;
-                                    // 绘制起始点的方形
-                                    int halfSize = _currentBrushSize / 2;
-                                    g.FillRectangle(new SolidBrush(selectedColor), 
-                                        imagePoint.X - halfSize, 
-                                        imagePoint.Y - halfSize, 
+                                    // 绘制起始点的圆形
+                                    int radius = _currentBrushSize / 2;
+                                    g.FillEllipse(new SolidBrush(selectedColor), 
+                                        imagePoint.X - radius, 
+                                        imagePoint.Y - radius, 
                                         _currentBrushSize, 
                                         _currentBrushSize);
                                 }
                                 else
                                 {                                    
-                                    // 绘制方形路径
-                                    int halfSize = _currentBrushSize / 2;
-                                    using (SolidBrush brush = new SolidBrush(selectedColor))
-                                    {   
-                                        // 计算两点之间的直线区域，并绘制方形
-                                        DrawLineAsRectangles(g, brush, _lastDrawPoint, imagePoint, halfSize);
-                                    }
+                                    // 绘制连线
+                                    g.DrawLine(pen, _lastDrawPoint, imagePoint);
                                     // 更新上一个点
                                     _lastDrawPoint = imagePoint;
                                 }