setIcon(<usefulbackpacks:backpack>)
setTranslatedTitle("Backpack")
setTranslatedDescription("Craft your own backpack.")

addParent("Age0:Leather5")

setShowToast(true)
alwaysVisible()

criteria = addCriteria("Backpack", "minecraft:inventory_changed")
criteria.addItem(<usefulbackpacks:backpack>)
setPos(352,161)