{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Bridges",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "No",
     "url": "2cc1b7a71d48066bae81a83aa0180d4c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWNhoDJgGTVwJIXh88s7/lNikKSuByOKgdQCLKMGUi8MJaGxRDUDqQVYqGYSFIwayEAxAABuXATgDs139AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "No"
     ]
    },
    {
     "label": "Yes",
     "url": "888a56b6d276182847445a230ac558d2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOElEQVQ4je3RoREAQAwCQZih/5Z5E/M6uHAFrAAhnApe2tCGNxAJfmAqFcxtyHkpBqZSTJoKYt0DTqUDVI/hAUkAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Yes"
     ]
    },
    {
     "label": "<all other values>",
     "url": "2cc1b7a71d48066bae81a83aa0180d4c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWNhoDJgGTVwJIXh88s7/lNikKSuByOKgdQCLKMGUi8MJaGxRDUDqQVYqGYSFIwayEAxAABuXATgDs139AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Sanded"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  }
 ]
}