[
    {
        "itemName": "battle_random_left",
        "roiFront": "122,155,480,426",
        "roiBack": "667,147,461,427",
        "mode": "default",
        "description": "description"
    },
    {
        "itemName": "battle_random_right",
        "roiFront": "719,138,417,392",
        "roiBack": "237,163,387,394",
        "mode": "default",
        "description": "description"
    }
]