{
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   "layerId": 0,
   "layerName": "American Indian Population",
   "layerType": "Raster Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Exceptionally high (outlier)",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBKxha/lNiUARDDSOKgdQCLKMGUgxYKDcCFYwaSDlgoYIZKGDUQMoBPAxh5RnVDKQWAABQPAQm6SdA0QAAAABJRU5ErkJggg==",
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     "groupId": "0",
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     "label": "Extremely high (> 300%)",
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    {
     "label": "Very high (200-300%)",
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     "label": "High (150-200%)",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAP0lEQVQ4je3UsQ0AIAACQUyYwv1ncw2tNKEGO36AKyggwvEbuIDtQBMYAqZiQTv6hFbQjwFDKuj3Nrx/FgNTHWkwAmyuBIydAAAAAElFTkSuQmCC",
     "contentType": "image/png",
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     "label": "Somewhat high (115-150%)",
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     "label": "Proportionate (85-115%)",
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     "label": "Somewhat low (50-85%)",
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     "contentType": "image/png",
     "groupId": "0",
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    },
    {
     "label": "Low (10-50%)",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWNhoDJgoZ2BBf//U2TSBEZGVAOpBFhGDaQYsFBuBCoYNZBywEIFM1DAqIGUA0QYQssz6hlIJQAAOFcD49mrOQEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
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    },
    {
     "label": "Zero or nearly none (< 10%)",
     "url": "d78790e3a1ac83ea5922c5d5739883a8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBrAaJ/ykx6PeF+YwoBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAACEpga8dIBMmQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
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   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Pop. concentration relative to region"
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}