GRHazelton
Subscriber
My darkroom is a second floor bathroom used by guests. I found at Lowe's, I think, a plastic dingus which fits over the switch, attaching by the cover plate screws. It is neat and requires that a finger be inserted to flip the switch. Here's a poor picture: https://www.lowes.com/pd/Style-Selections-1-Gang-Clear-Single-Wall-Plate/50426934
It seems with this guard it would be impossible to accidentally turn on a white light.
It seems with this guard it would be impossible to accidentally turn on a white light.