Mushroom-mushroom-mushroom

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

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

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