Change WPF treeViewItem Background color when selected but lost focus

Question

I am trying to change a TreeViewItem background color when it selected but lost focus. I saw some similar questions like: WPF TreeViewItem Background , but I couldn\'t use it...

Answer 1

In reference to this other post, the ControlBrushKey did not work for me. The InactiveSelectionHighlightBrushKey did, however. Also setting the InactiveSelectionHighlightTextBrushKey got around the changing text color.

My complete solution: