Change color of BTT buttons when pressed/touched

Uhh, sorry the trouble... I am pretty sure it's obvious but I can't find where to change the color of BTT Buttons or Widgets when pressed/touched

I can change the Background color of any button or widget easily, but as soon you touch it, it changes to a default system gray color.
If you keep touching it'll at some point switch back to the background color set in BTT
If you release, of course the action will be triggered and back ground apply again too

How can I avoid that short termed highlight when pressing/touching the button/widgets?
And even better, how to set that globally (if possible)?

not possible as far as I know. I would like this feature too