qmk_firmware/keyboards/latin17rgb/info.json

{
  "keyboard_name": "latin17rgb",
  "url": "",
  "maintainer": "18438880",
  "width": 5,
  "height": 4,
  "layouts": {
    "LAYOUT_numpad_5x4": {
      "layout": [
                {"x":0, "y":0},
                {"x":1, "y":0},
                {"x":2, "y":0},
                {"x":3, "y":0},

                {"x":0, "y":1},
                {"x":1, "y":1},
                {"x":2, "y":1},

                {"x":0, "y":2},
                {"x":1, "y":2},
                {"x":2, "y":2},
                {"x":3, "y":1, "h":2},

                {"x":0, "y":3},
                {"x":1, "y":3},
                {"x":2, "y":3},

                {"x":0, "y":4, "w":2},
                {"x":2, "y":4},
                {"x":3, "y":3, "h":2}
      ]
    }
  }
}