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Hmm interesting concept, if these would be UV colors it would look pretty nice in the dark

In 1969, a friend of mine painted one of his rooms black, installed a black light then invited all his Hippie friends to come and paint whatever they wanted on the walls and ceiling with Dayglow paint... It turned out to be quite an epic experience.

That's just so cool! I bet it was a lot of fun! Have a lovely week!