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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4jWNpbSxp4eBgcmCgAvjx498BFpBhTpYi1tQwcN/xNwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhj9+/DsAKmmpAUBmAQBMmxOpCDLovQAAAABJRU5ErkJggg==",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWNpqCtqYWNhcGCgAvj1h+EAC8gwc21Oa2oYePLqdwYWBioDllEDKQYslBuBCkYNpBywUMEMFDBq4IgIw19/GA6ASlpqAJBZAIivEMtcOdQ1AAAAAElFTkSuQmCC",
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     "groupId": "0",
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     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWOpq8hrYWH578BABfDnD+MBFpBh2nL/ralh4NVHDAwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhn/+MB4AlbTUACCzAHEWEeMXWagjAAAAAElFTkSuQmCC",
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     "groupId": "0",
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   "legendGroups": [
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   "layerId": 7,
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   "legendGroups": [
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}