nonamethanks said:
radioactive glow seems fine as a tag idea, but it could overlap with cherenkov_radiation, and we likely want a tag specifically for the green glow. Maybe radioactive green?
I think that either would be a good place for some of the posts in radioactive (and possibly radiation, I haven't checked if there are many glowing green stuff posts in there) to get moved to. I mulled over things like radioactive_goo, and radioactive_sludge, but not all of the glowing green things are sludges or goos, and it would be really silly to have different radioactive_* tags for different consistencies.
A bit of an aside: cherenkov_radiation is a funny one too, because the demon_core (which is what most of the images in that tag use as the radioactive source) wouldn't have given off Cherenkov radiation, because it isn't underwater in any of those images.
That's what the artist intends the light to be though even if it wouldn't work like that, so that's good enough to leave be I think. Not like all of the images on here have to be physically possible.