{
 "layers": [
  {
   "layerId": 0,
   "layerName": "ONEMAP2020",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "I级",
     "url": "1a9f50feaaaa26852c5f895b22b96529",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgVYrGP5TYtCxCAZGFAOpBUYNHDVw1MBRA+lsIKw8o5qB1AIAa5YEcP1MM/IAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "1"
     ]
    },
    {
     "label": "II级",
     "url": "1fba4165dadb3a7e0ae0f605638c06b4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgR3n0v5TYlCF0SxGFAOpBUYNHDVw1MBRA+lsIKw8o5qB1AIAHxgFlqfBgpIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "2"
     ]
    },
    {
     "label": "III级",
     "url": "f0e2baa28a085b3e1b0c2e3472910ba6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgf/2vfhPiUFMThKMKAZSC4waOGrgqIGjBtLZQFh5RjUDqQUAz1UErtk0mEoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "3"
     ]
    },
    {
     "label": "IV级",
     "url": "95f966c7b24395109466446666f70b8a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYKGZgf8u1/+nxCAm3UZGFAOpBUYNHDVw1MBRA+lsIKw8o5qB1AIA68wFArKDMNcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20,
     "values": [
      "4"
     ]
    }
   ]
  }
 ]
}