qmk_firmware/keyboards/takashiski/namecard2x4/rev1/info.json

{
    "rgblight": {
        "hue_steps": 10,
        "saturation_steps": 10,
        "brightness_steps": 10,
        "led_count": 4
    },
    "ws2812": {
        "pin": "F4"
    },
    "matrix_pins": {
        "cols": ["E6", "D7", "C6", "D4"],
        "rows": ["B4", "B5"]
    },
    "diode_direction": "COL2ROW"
}