Mushroom-mushroom-mushroom

Adds icons to enchanted books if they have max level enchantments. Works on other resource packs, if you don't care about asthetics.

Shows different colours for fireworks of different flight durations, as well as a warning colour for those explosive ones.

A simple data pack that backports the (in?)famous music disc from 1.21.7 to 1.21.1+.