Originally Posted by D.H1cks
I think they are built into the art for the experience bar. I would guess that if we get access to those assets, then we could get rid of them. For now, I don't believe it is possible.
As far as I've been able to tell, you are correct. It would be nice, of course, to gain acces to that art asset so people could lay out markers in broken down %'s based on the width of their bars., as well as make them match their interface. I'd almost wager that'll come abiout when we can skin player, target, and party unit frames.