Heh, in that case, I'll just copy the shader from solidslick_s to use the image of slick, as the in radiant image is the one my caulk uses, and I'd prefer not to confuse the two since they are so close.
On an unrelated note, is there a way to allow for a door to open at a set time during a match (like say 22:15) or during SD? There dont appear to be direct triggers for these events, and the only solution I can think of is to misplace a set of doors, set them to open at default (so that the misplaced doors are set in the correct position), and give them a wait period of 1800 before they "close". Is there a better way?