{
  "catalog": [
    {
      "name": "Cesium Ion",
      "type": "group",
      "items": [
        {
          "name": "PAMap Terrain",
          "type": "cesium-terrain",
          "ionAssetId": 3957
        },
        {
          "name": "Earth at Night",
          "type": "ion-imagery",
          "ionAssetId": 3812
        }
      ]
    }
  ]
}