I have the default textured drawing background. The grips don't even show up white for me, they are just invisible until I hover over them (they hover red).
Yeah, sounds like your "Drawings, Paper Color" and your grips color are the same color. Oh well, I don't think there is any easy way to change the grips color so I just made my "Drawings, Paper Color" a little darker and the grips show up better.
I'd prefer changing the grip color and keeping my paper white but, it will do.
Thanks - Todd