Copper Detailing

Copper detailing is when you use a copper ingot on any block and it gets partially covered with copper that slowly oxidizes over time. It could create potential for lots of creativity and new textures. It would be similar to glow lichen but it would change over time and just be an overlay on a block instead of an item on top of it. Since this could double the amount of blocks in the game it should not be able to be obtained in survival/creative.

This system could also be expanded upon with other items like amethyst and lapis. Amethyst could permanently dim a block and lapis could make it glow or look enchanted.

These features overall would tie neatly in player expression and creativity with 1.20 because they allow for endless possibilities.