I have been googling a lot about this issue and ended up creating a ticket here for any sort of help that I can get. I wish to remove the selection behavior altogether (via mouse and tap) from the map legend layers. I don't want any kind of selections possible in there. If that is not possible, I would atleast want to know how to set the selection color to white/transparent??
Have you tried Morten's suggestion on the Toolkit issue you opened?
...look at the control templates used. It's probably a setting on the listview control that you can set by overriding the control template.
The following links should help you get started: