I've noticed the visible-light tag has a tendency to be incorrectly applied in cases where the OP happened to have visible light in mind when they asked the question, but they are really asking about electromagnetic radiation in general. (recent example, and there are many other visible-light questions which I think should really have electromagnetic-radiation instead) I've been thinking for a while that most of the questions which really deserve to be tagged visible-light are actually asking about color or visual perception, and I think if we were to rename the tag to something like color-perception or visual-perception or so on, it would probably cut down on its misuse. What do you think - should we make this change and what is a good replacement name for the tag?
For background, this question collects some resources related to why we introduced the visible-light tag in the first place. It was an effort to break apart the old light tag into questions about EM radiation in general and questions not asking about EM radiation.