Change Color of Drop Location Indicator in Explorer.

Hi all,

I want to change the color (in the explorer) of the horizontal drop-indicator-line and the color of the node when dragging an item over it (drop target).

I tried the follwoing approaches:

1. Implemented a CustomTreeCellRenderer extending NodeRenderer.  
    Then overwriting "getTreeCellRendererComponent()".Attach   
    CustomTreeCellRenderer to
    the jTree constituting my Explorer's BeanTreeView. I managed to    
    chagnge the color of the selected node, but not of the dragged-over 
    node. I am not able to distinguish which rendering-event refers to
    a drag-event by this code in getTreeCellRendererComponent():

  JTree.DropLocation dropLocation = tree.getDropLocation();
                if (dropLocation != null)
                {
                    if ( dropLocation.getChildIndex() == -1 && tree.getRowForPath(dropLocation.getPath()) == row)
                    {
                        label.setBackground(_DARK_CYAN);
                        label.setForeground(Color.BLACK);
                        label.setOpaque(true);

                    }
                }

2. By attaching a listner to  the jTree constituting my Explorer's    
    BeanTreeView: no drag and drop events were raised.

   btv.getTree().addPropertyChangeListener("dropLocation", new Repainter(cbtv.getTree()));


3. By adding an PropertyChangeListener to my ExplorerManager:
    No drag and drop events were raised!

_explorermanager.addPropertyChangeListener( new PropertyChangeListener()
        {

            @Override
            public void propertyChange(PropertyChangeEvent evt)
            {
                String d = evt.getPropertyName();
                System.out.println("property:" + d);
            }
        });


4. By trying to change the dropline-variable in UIManager.

UIManager.put("Tree.dropLine", new Color(0,0xAA,0xAA)); // no effect!

How can I change the color of the horizontal-drop-line-indicator and

of the "dragged-over" node?


Help appreciated.

Regards
R4DIUM