Yeah, using dyes to color wood or glass would be great.
Also random ruins scattered around the landscape (with spawners and treasure chests) as well as additional rare plants. Give players a more incentive to go out and explore their world.
"The way I see it, every life is a pile of good things and bad things. The good things don't always soften the bad things. But vice versa, the bad things don't necessarily spoil the good things or make them unimportant."