qmk_firmware/keyboards/swiftrax/retropad/info.json

{
    "keyboard_name": "Retropad", 
    "url": "https://github.com/swiftrax", 
    "maintainer": "swiftrax", 
    "layouts": {
        "LAYOUT": {
            "layout": [{"label":"0,1", "x":0.5, "y":0}, {"label":"1,0", "x":0, "y":1.5}, {"label":"1,1", "x":1, "y":1.5}, {"label":"2,0", "x":0, "y":2.5}, {"label":"2,1", "x":1, "y":2.5}]
        }
    }
}