{
 "layers": [
  {
   "layerId": 0,
   "layerName": "USA Major Roads",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 123712,
   "legend": [
    {
     "label": "Freeway or Other Major Road",
     "url": "1edafc7a110397545c6f2af2a569347d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAASklEQVQ4jWNhoDJgGTVwhBnoS6FZm1EMXK/Cs4kS0wLvfGFEMdBbgJUS8+CAdmG49cNv6hoYeOeLH1UNZIDGEjUNpAoYNXAQGggAkE4LJsHejDAAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Freeway or Other Major Road"
     ]
    },
    {
     "label": "Major Road Less Important than a Freeway",
     "url": "86fb7cb2c73a2de0c9c112f1986c8f85",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNhoDJgGTVwJBn4n4HBlxKDGBkYNqMYyLA5cBMlBjL4rmdENdBHiSLzYICGkbLlHpUN9F3vR1UDYbFENQOpBUYNHIQGAgCKywkCQ52sTwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Major Road Less Important than a Freeway"
     ]
    },
    {
     "label": "Other Major Road",
     "url": "f5845cc8a5645247f484700707140ca4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATUlEQVQ4jWNhoDJgGTVwJBnY2NjoS4lB9fX1m1EMjIz8vokyAxkYUQxUVf1NiXlwQLswvH2blboGLl/O6UdVA2GxRDUDqQVGDRyEBgIAPLgOgDFFh0YAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Other Major Road"
     ]
    },
    {
     "label": "Secondary Road",
     "url": "93bce084e4edd1bc5d8c590b9def7bef",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4jWNhoDJgGTVw1EAKDExKSpKixKB58+Y9QzGQjY3tKSUGMjAwMKIYSC0AN/DXr1/SVDUQFgZUM5BaYNTAkWAgABpLCxIn8/m9AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Secondary Road"
     ]
    },
    {
     "label": "Local Connecting Road",
     "url": "c573a0b788cbb0ab85691ae1082ff0e5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAKklEQVQ4jWNhoDJgGTVw1MBBZmADhWY1oBtIFUBNF2IYSBUwauCogWQAAMXnAdEjk3gsAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Local Connecting Road"
     ]
    },
    {
     "label": "Important Local Road",
     "url": "667679a40e4f47644c64337d9c001898",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQUlEQVQ4jWNhoDJgGTVw1MDBYuDGjRsbGBkZjSkx6P///2f9/f0bqOZCRkZGSQYGqAv9/f0bqGXwEImUUQOHuYEAouoJ2iDtPKIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Important Local Road"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Road Classification"
    }
   ]
  }
 ]
}