title: Silverlight - Space between top of TreeView and first TreeViewItem
body: <p>I have a corollary question to <strong><a href="https://stackoverflow.com/questions/852899/silverlight-space-above-below-treeview-items">This</a></strong> one.</p>
  
  <p>How can you change the spacing between the top of the TreeView Control and the first TreeViewItem?  Specifically, I want to REDUCE the space between the top of the control and the first item. As with the other question, I'm guessing that I'll need go restyle the TreeView. But, what style do I need to chnage, and which property controls that particular space?</p>
  
  <p>Thanks in advance.</p>