{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Paved roads",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Paved",
     "url": "89654fabcf06d3fc0dad69650fd87f39",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWNhoDJgGTWQYsBCuRGoYCQbuIKB4T8lBkUwMDCiGEgtwIJuA9UMpBZgoZpJUDBqIOVg8IchANWhAqqmPT5pAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Paved"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "TCARoadClass"
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Light duty roads",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Light Duty",
     "url": "11597d4d5ea63840289b7181ce1f8adb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWNhoDJgGTWQYsBCuRGoYCQbqFbM8J8Sg271MjCiGEgtwIJuA9UMpBZgoZpJUDBqIOVg8IchAPzeBLlQ1II6AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Light Duty"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "TCARoadClass"
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Unimproved roads",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Unimproved",
     "url": "0ef312c742d18d7bcc1952b70ae05421",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPElEQVQ4jWNhoDJgGTWQYsBCuRGoYCQb+H8Vw39KDGIMY2BEMZBagAXdBqoZSC3AQjWToGDUQMrB4A9DAEP3A6mWfrgqAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Unimproved"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "TCARoadClass"
    }
   ]
  }
 ]
}