setIcon(<backpack:backpack, meta:100>)
setTitle("A Even Nicer Pocket")
setDescription("Get a Medium Backpack")
addParent("triumph:misc/root")
setPos(260,50)
hideLines()

criteria = addCriteria("Get a Medium Backpack", "minecraft:inventory_changed")
criteria.addItem(<backpack:backpack, meta:100>)