CursedFlames

Makes potions of all types stack to 16.

Makes the singleplayer world icon update each time the world is loaded.

Dye the top and bottom half of shulker boxes independently.

Disable increasing repair/enchant cost on items in anvils

Stops players' attack cooldown from resetting when they switch items.

Completely removes item durability

Random modifiers for equipment, that give minor buffs/debuffs

Rotten flesh inflicts Pale, which causes damage in sunlight, instead of Hunger.

Hoppers containing buckets remove and add fluids from the world.