{
    "primitive": {
        "opacity-a0": 0,
        "opacity-a10": 0.1,
        "opacity-a20": 0.2,
        "opacity-a30": 0.3,
        "opacity-a40": 0.4,
        "opacity-a50": 0.5,
        "opacity-a60": 0.6,
        "opacity-a70": 0.7,
        "opacity-a80": 0.8,
        "opacity-a90": 0.9
    }
}