Actually, the dome as it is packaged is sitting on its own foam pedestal, and there is space separating the outer dome surface from the outer lower foam half, but the upper foam half has these little bumps in the patterns you see forming in the paint and it is those bumps that, when in contact with the paint surface (which probably would need more time to cure) reacts to form the pattern, and it cannot be rubbed away without affecting the paint surface.