Item : Prototype
    place_result = EntityID
    placed_as_equipment_result = EquipmentID
    icon = Sprite
    stack_size = ItemCountType
    fuel_value = Energy("0J")
    subgroup = subGroupID("other")
    flags = "goes-to-main-inventory" or "goes-to-quickbar"
    [dark_background_icon] = Sprite
    
