页面视图新增缩略图模式

AIStudio.Wpf.DiagramDesigner/Adorners/DrawingRubberbandAdorner.cs

@@ -208,7 +208,7 @@ namespace AIStudio.Wpf.DiagramDesigner
             base.OnRender(dc);
 
             // without a background the OnMouseMove event would not be fired !
-            // Alternative: implement a Canvas as a child of this adorner, like
+            // Alternative: implement a CanvasBrush as a child of this adorner, like
             // the ConnectionAdorner does.
             dc.DrawRectangle(Brushes.Transparent, null, new Rect(RenderSize));