The idea is simple, a redstone lamp that can be any color (basically an rgb led). The use would also be simple, depending on the signal intensity, a different color.

(An example, I think the order doesn't matter, the only logical thing is that black is 0 [off])

I've seen thousands of mods of individual lamps, one of each color type, but never a single one that can represent all the colors. I know this doesn't sound very "Minecraft" (especially when calling it RGB), but I imagined it on one of those giant screens they make in crazy redstone buildings and I saw incredible potential. A completely color screen inside Minecraft.

(This but in color)

This mod along with quark seem to me to be the best of all and with the best aesthetics, it seems to me to be the one indicated to suggest a functional block.
I would like to know what you think or if it simply does not agree with minecraft or the rest of the mod. Thanks.

Another lazy idea I had is that you could add colors to achieve infinite colors, kind of like beacons, but this wouldn't work since you couldn't power all the blocks with redstone. I just wanted to mention this other idea, maybe someone else can come up with something else.

We had plans for this