I had to do it because editing rActionBarStyler is not intended for button styling. rActionButtonStyler is. If you provide any kind of rActionButtonStyler theme...no problem.
Example:
http://www.wowinterface.com/download...tyler-Dae.html
The barstyler does moving/scaling. The buttonstyler does the button art. Hacking the barstyler to add art is bad.