qmk_firmware/keyboards/yoichiro/lunakey_macro/info.json

{
    "keyboard_name": "Lunakey Macro",
    "url": "",
    "maintainer": "Yoichiro Tanaka",
    "width": 4.5,
    "height": 4,
    "layouts": {
        "LAYOUT": {
            "layout": [
                {"label":"0,0", "x":0.5, "y":0.5},
                {"label":"0,1", "x":1.5, "y":0.175},
                {"label":"0,2", "x":2.5, "y":0},
                {"label":"0,3", "x":3.5, "y":0.5},

                {"label":"1,0", "x":0.5, "y":1.5},
                {"label":"1,1", "x":1.5, "y":1.175},
                {"label":"1,2", "x":2.5, "y":1},
                {"label":"1,3", "x":3.5, "y":1.5},

                {"label":"2,0", "x":0, "y":3},
                {"label":"2,1", "x":1, "y":2.75},
                {"label":"2,2", "x":2, "y":3}
            ]
        }
    }
}