{
  "sizing": {
    "aspectRatio": {
      "cover": {
        "value": "5:3"
      },
      "picture": {
        "value": "4:3"
      },
      "landscape": {
        "value": "4:2"
      },
      "panorama": {
        "value": "4:1"
      },
      "square": {
        "value": "1:1"
      },
      "a4": {
        "value": "1:1.4"
      },
      "book": {
        "value": "{sizing.aspectRatio.a4}"
      },
      "video": {
        "value": "16:9"
      }
    }
  }
}