title: How can I make WPF Trigger for IsMouseOver on TreeViewItem NOT affect all parents of the moused-over control?
body: <p>I understand why this is happening.  The bounding box of a parent TreeViewItem includes its children's bounding boxes, so when I am moused over a TreeViewItem, all its parents in the tree are also moused over.   Is there something besides IsMouseOver I should be using?</p>