{
 "layers": [
  {
   "layerId": 0,
   "layerName": "1954",
   "layerType": "Feature Layer",
   "minScale": 200000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "96d049cca5b0e1209ff732401aa6b38e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgUUMDJsoMaiPgcEPxUBqgVEDRw0cNXDUQDobCCvPqGYgtQAAq2IDLYBWYMEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "1984",
   "layerType": "Feature Layer",
   "minScale": 200000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "8b0fe1f4e220ddcef236dab94f246e3c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgf9DGTZRYhDjagY/FAOpBUYNHDVw1MBRA+lsIKw8o5qB1AIAXX8ESxIUqC4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "2001",
   "layerType": "Feature Layer",
   "minScale": 200000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "9df3657fbe096f7e560d735abecf9c9c",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgdc2zd9EiUFafol+KAZSC4waOGrgqIGjBtLZQFh5RjUDqQUAFBkFeDPdXgYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 3,
   "layerName": "2010",
   "layerType": "Feature Layer",
   "minScale": 200000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "36e18026b38c27c89e0311d55c029422",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgf9XMWyixCDGMAY/FAOpBUYNHDVw1MBRA+lsIKw8o5qB1AIAQEcD9o44GN8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 4,
   "layerName": "2016",
   "layerType": "Feature Layer",
   "minScale": 200000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "9c94fe59f8bcbf2a52b6f4ace69ec5d4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgf//l2yixCBGxh4/FAOpBUYNHDVw1MBRA+lsIKw8o5qB1AIA+e4FLX5kkBIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}