{
 "layers": [
  {
   "layerId": 1,
   "layerName": "contours",
   "layerType": "Feature Layer",
   "minScale": 4513,
   "maxScale": 0,
   "legend": [
    {
     "label": "CONTOUR INDEX",
     "url": "8333c278d4cf6d46362b40d1f77c80a7",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAO0lEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa+GwGw39qGCaVwcBIGxdKZTAwUtVAagIWqprGMGogNcDgjxQAvAkD1OLPFoIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "CONTOUR INDEX"
     ]
    },
    {
     "label": "CONTOUR INTERMEDIATE",
     "url": "23bad4ddfaad6c17b5eead7bcda9fac0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQklEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa+P9ygwMDAwMIUwIOMOo2HKCNCxl1Gw6AbKCagdQELFQ1jWHUQGqAwR8pANzwB3910DbwAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "CONTOUR INTERMEDIATE"
     ]
    },
    {
     "label": "<all other values>",
     "url": "2706cf82f2812c491450f1076003d5bc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQ0lEQVQ4jWNhoDJgGTWQYsBCuRGoYKQa2NjY2MDExGRPiUH//v07WF9f30AbF9bX1zdQ1UBqAhaqmsYwaiA1wOCPFADEmwpOOTfaCgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Type"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  }
 ]
}