Redstone Lamps always have the same color. I want them to have different ones.
Actually, this idea came from thinking of uses of Lapis Lazuli other than dye. Then I thought of it: Lapis Lazuli and other dyes can be smelted to lamp oil, and redstone lamps can be heated to get the oil they have.
Smelting a color dye will give you oil of that color
-Rose Red + Smelting = Red Oil
-Lapis Lazuli + Smelting = Blue Oil
Smelting a redstone lamp will get rid of its oil
-(Normal) Redstone lamp + Smelting = Glowstone Oil and Empty Redstone Lamp (empty redstone lamps, when powered will give off redstone particles which look like redstone power leaking from the lamp, making another good decoration)
-Green Redstone Lamp + Smelting = Green Oil and Empty Redstone Lamp
Blaze Powder can make light brighter (except Glowstone Oil)
Blue Oil + Blaze Powder = Blazed Blue Oil
Crafting redstone lamps with an oil gives you that color