This visual effect was created to use as a token with a virtual tabletop platform such as Roll20.net. It's designed to be used as a 6x6 square (for the circle version) vfx token/overlay (use it like you would use AoE templates at your physical table). Also includes a 1x6 (5 ft. + "dangerous light") segment for the regular wall.
This was made for marking the location of the prismatic wall spell.