{ "layers": [ { "layerId": 0, "layerName": "Coal Authority 2D seismic (BNG)", "layerType": "Feature Layer", "minScale": 2500000, "maxScale": 0, "legend": [ { "label": "", "url": "6428582df3baf8c3baa893e39ae64834", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARUlEQVQ4je3SwQkAIAxD0V/oYHZyu1m96AKSg0JzyulBII443mCDl2DBUGAG6RubCrAg9JMNsiAUmEH6KQoQvrlNg2+BC7zsCRKAwTr6AAAAAElFTkSuQmCC", "contentType": "image/png", "height": 20, "width": 20 } ] }, { "layerId": 1, "layerName": "Coal Authority 3D seismic (BNG)", "layerType": "Feature Layer", "minScale": 2500000, "maxScale": 0, "legend": [ { "label": "", "url": "6fecad4c70e85e73e16ce9e381376171", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARElEQVQ4je3MMREAIAwDwAwVUB9IYMFYpyKskuIAJu4Q0DEv4O2MseG+0IEsg/tC5mwJI2At0UehQoUKFb6QLET0bGRdWKUN/13hH5gAAAAASUVORK5CYII=", "contentType": "image/png", "height": 20, "width": 20 } ] } ] }