actually nevermind, it doesnt simulate the old effects
any color that isn’t -full- red, green or blue, when multiplied by a high value for emissive, seems to be getting blown out into a whiteish version of that color
on the other hand, unlike the first few replies, as of 4.24 a (50,0,0) pure red does not become orange anymore, and a (0,0,10) pure blue does not become pink anymore