Not ideal, but if you need a proverbial tyre iron; this is projecting three seperate Light Functions (R,G,B).
I had to literally split it into three textures however, as even if you only output R into Emission, the light reads the whole RGB intensity. This might be intentional but I’ll file it as a bug anyway.
(and yes, it works as dynamic [Movable], so you can manually place & tweak…just parent the G & B lights to the R light)
