experience_boosters/<name>.json

Name	Type	Description	Optional
id	String	The identifier	No
item	ItemWrapper	The item	No
recipe	Recipe	The recipe	Yes
boost	Expression	The number of levels to add to the earned ones (x)	No

{
  "id": "DECENT_EXPERIENCE_BOOSTER",
  "item": {
    "material": "EXPERIENCE_BOTTLE",
    "name": "%blue%Decent Experience Booster",
    "lore": [
      "%gray%Increases the amount of pet experience",
      "%gray%you receive by 100%.",
      "%dark_gray%Right-click to use."
    ]
  },
  "recipe": {
    "shape": [
      "gdg",
      "ded",
      "gdg"
    ],
    "ingredients": {
      "g": "GOLD_BLOCK",
      "d": "DIAMOND_BLOCK",
      "e": "EMERALD_BLOCK"
    }
  },
  "boost": "x"
}