Dyes

Dyes is also a game feature of Minecraft.
More information can be found on the Minecraft Wiki at Dye..

Dyes are items obtained by crafting flora or other natural items, which change the colors of items they are applied to. Note that armor in Blockgame, while it may use leather armor as a base, cannot have its color altered by using dyes.

For further information, please refer to the Vanilla Minecraft items.