qmk_firmware/keyboards/0_sixty/underglow/info.json

{
    "keyboard_name": "0-Sixty-underglow",
    "usb": {
        "pid": "0x0061"
    },
    "features": {
        "rgblight": true
    },
    "ws2812": {
        "pin": "B6"
    },
    "rgblight": {
        "led_count": 24,
        "max_brightness": 185
    }
}