Yeah, there's no padding involved, and my foreground is 3-sliced. My problem is that the top and bottom borders of the sprite make up about 90% of the sprite's original height. With no borders at all on the background, the thumb ends up extending about 20 pixels above or below the edge of the background. In this case the art can be modified to work more as the code intended, but assuming that won't always be an option, I thought I'd make the request.