@Felthry Can I go with Cyan, Magenta and Red?
@Felthry Ahh, I see. I have Cyan, Magenta and Red set as gain halos for my audio interface, and it feels very nice. Though to be fair, I have it set so that only intentional speaking and noisemaking at the microphone trips up the gain halos.
I guess magenta is still fairly valid if you can get it since it's not an intrusive colour.