RGB Redstone Lamps

A new craftable block called the RGB Redstone Lamp (or something like that), probably crafted with one redstone lamp, and either a glow ink sac, or blue, red, and lime dye. These lamps would function the same as normal redstone lamps, but they would display different colors depending on the signal strength put into them, with each signal 1-15 displaying any dye color except for black. This would help with creating colored displays and even redstone computers, like the one that can play Minecraft in Minecraft.