WPF Inkcanvas selection adorner

I want to change default selection adorner in WPF inkcanvas. I tried clearing selection in selectionchange event but confused about what to do next ?

I think this forum may be the wrong one to post about WPF issues. I used to do a lot of WPF years ago, but I’ve forgotten way too much at this point to be helpful. Try posting on the MSDN forums or StackOverflow?