firefly/mods/firefly_font/fonts/firefly_normal.json

{
    "A": {
        "width": 7,
        "height": 10,
        "base": 0,
        "advance": 2
    },
    "B": {
        "width": 7,
        "height": 10,
        "base": 0,
        "advance": 2
    },
    "C": {
        "width": 7,
        "height": 10,
        "base": 0,
        "advance": 2
    }
}