Adsense background images?

Apologies if this is the wrong forum, but it's semi-vb related.

I have the 3x text adsense block at the bottom of my forums at www.sevenstring.org. Right now the background is a solid color (black). My forum background is a small tiled image:



Does anyone know if it's possible to use that image as a tiled background for the adsense block as well? I'd like it to look a little more seamless.

Thanks.