[
  {
    "layer": "bottom",
    "height": 20,
    "output": ["HDMI-0", "DP-0"]
  },
  {
    "position": "bottom",
    "layer": "top",
    "height": 21,
    "output": ["DP-0"]
  },
  {
    "position": "left",
    "layer": "overlay",
    "height": 22,
    "output": "Fake HDMI output #1"
  },
  {
    "position": "right",
    "layer": "overlay",
    "height": 23,
    "output": "!HDMI-1"
  }
]