Does anyone know how to remove logos from the backboard?

I've managed to figure out how to replace the backboard logos in Gimp but I seen that some of the backboards already come with nothing on the glass and I'm wondering what part of the baskets.scne file (just assuming that's where you would find it) would I have to edit or copy over to accomplish this? I've been going over it for hours and I can't figure it out. Any help would be much appreciated!