register
Registers a pair of staff texture and an ingredient texture to be displayed in a smithing table, when using a staff infusion smithing template. This method should be called for every minecraft:smithing_transform recipe in the mod's data pack, which infuses an ingredient into a faint staff.
Parameters
base
The background texture of the 2nd slot of the smithing table.
additions
The background texture of the 3rd slot of the smithing table.