{
 "layers": [
  {
   "layerId": 0,
   "layerName": "surface_w_current",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Below normal",
     "url": "3892f091e4ba2fc832a85aae4c704fc3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABIklEQVQ4je3SO46DMBAG4N9RKurUS7hIsC+yUg5ixmYOslIuAuQiQGrXlHiLQEBZQx5KuSNR8JhPv5nZ4sO1/QeDZa01ALDZbEoA0FqXb4HWWiOEoPHee08AwMyl1lq9BDJz4b2X6a7AYVcAANouQdvtUTklmbkIoUFwxL6/fhBH9e15HNXD1eB0OUprrSEiswoysxyTzbF5xVGNdFegcooArINTU7P0CgBwuIK4T/kH7PteCiEW0z2qt/ew7RIA0yotgkRk8jyns1O36YbB/fMJvfe2coriqAkeve0SVE5BCFHeL3kQJCLDzOnpchymPcFnp+bYc3sIAFprxcxF5ZQMnSDLMhPqWx3KgErgOv0x/VrPwynP/lG58tnz4Kv1cfAXnRSLv7NY9AQAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Below normal"
     ]
    },
    {
     "label": "Much below normal",
     "url": "d98e24057117f468caeb6116a8efa454",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABHElEQVQ4je2S3Y2DMBCExwiJSGkCV3LeUijErM0WklJMJ9DESYmEcB44OJQzhER5vJH84J/9NOvZHB9W/g9MynvvACDLshYArLXtW0DvvVNK8byPMTIAiEhrraWXgCISYozmFgKuIUyPtUZeliiIjIiEFDQJnGHflwuGrlvOh66bVt/jXFXGe++Y2e0CRcTMztawtYauwy0EFEQMYB+4FPX91hUA4DoB8ejyD3AcR6OU2nT3TG/PYa41gN9R2gQys2uahk9ES7pJYFkedxhj9AURD32fbD3XGgURlFLt45AngczsROTrXFVT2ivwiWgNOzaHAGCtJREJBZEpEh3Ude1Sdbuh/EANMKU/u9+reZry6o/anWfHga/q48A74yKTxFuDCKYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Much below normal"
     ]
    },
    {
     "label": "Normal",
     "url": "c3e682d6c650e6040497069443553c12",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABLUlEQVQ4je2SPXLCMBSEVwwd1KIUcBAsXSQzHEQ8iXeQzHAR2RwE4xJqu7VSJCYeIszPUGY7/X2zT7tjvFnjf2BS3nsHAKPRKAcAa23+EtB774QQ1K1jjAQAzJxba81TQGYOMUZ9zgJOqwAAmFQLTKs5ZGE0M4cUNAnsYIePTzSqvOw3qkSjStTqiOVurb33jojcIJCZdeesD+urUSXOWYAsDAEYBnaq1fHWEQDgtAqQhcG1yz/Atm21EOKmu3t6uYeTagHgt0o3gUTkttstzfbmkm5K02r+uMMYo5eFoVodk6NPqgVkYSCEyK9LngQSkWPmbLlb63MW0AfP9qYPe6yHAGCtNcwcZGG0TEyw2Wxc6t1gKD9QDXyn37kfenM35d4f5QPXHgc+q7cDvwAfY4/TB/5jygAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Normal"
     ]
    },
    {
     "label": "<all other values>",
     "url": "8ce84bb508d80db91366b8804384e77e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAfklEQVQ4je3Qyw3EIAwE0DmkEOgkrsykMtPJTCl7IdFKq0A+e2QkhEDWw3jBn7NMcIJHSttrW6/AYmYOAJKc5Pb1wG1wzTm7mR0XEeERgTN0CKaUBiX3wJ9IAjpzHIElIiDJ907bDB+DAFBIVpLrfu4VX/1y7XX1BLycCb7PBxkMKQJT2uqxAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "1",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Custom"
    },
    {
     "id": "1",
     "heading": ""
    }
   ]
  }
 ]
}