Removed new keyword, hiding not needed because its an interface implementation.

Fixed indentation.

src/AddIns/DisplayBindings/WpfDesign/WpfDesign.Designer/Project/Extensions/PartialPanelSelectionHandler.cs

@@ -39,7 +39,9 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 			this.ExtendedItem.AddBehavior(typeof(IHandlePointerToolMouseDown), this);
 		}
 		
-        public new void HandleSelectionMouseDown(IDesignPanel designPanel, MouseButtonEventArgs e, DesignPanelHitTestResult result)
+		#region IHandlePointerToolMouseDown
+
+		public void HandleSelectionMouseDown(IDesignPanel designPanel, MouseButtonEventArgs e, DesignPanelHitTestResult result)
 		{
 			if (e.ChangedButton == MouseButton.Left && MouseGestureBase.IsOnlyButtonPressed(e, MouseButton.Left))
 			{
@@ -47,6 +49,8 @@ namespace ICSharpCode.WpfDesign.Designer.Extensions
 				new PartialRangeSelectionGesture(result.ModelHit).Start(designPanel, e);
 			}
 		}
+		
+		#endregion
 	}
 
 	/// <summary>