{ "id": "17", "name": "Scale overview of gravity surveys", "type": "Feature Layer", "minScale": "0", "maxScale": "0", "legend": [ { "label": "Mapping 1:200,000", "description": "", "imageData": "iVBORw0KGgoAAAANSUhEUgAAACIAAAAiCAYAAAA6RwvCAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAV0lEQVRYhe3OsQnAMBAEwQseFAjcf4/ODMIoklOzDXyyU8HUe9bZWek0MlM7K0/u1siVpFoHP0bICBkhI2SEjJARMkJGyAgZISNkhIyQEaqRmas5MTLzAYEuCn7ffIGBAAAAAElFTkSuQmCC", "contentType": "image/png" }, { "label": "Mapping 1:25,000", "description": "", "imageData": "iVBORw0KGgoAAAANSUhEUgAAACIAAAAiCAYAAAA6RwvCAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVklEQVRYhe3YoQ3AMBDF0C/lWPafsrRBVZSCqsQLHLEneNh173PWTmtzJLV2cj29kCSpbsCfECaECWFCmBAmhAlhQpgQJoQJYUKYECaECWE1RzfhGzUvzQMKbDag7K4AAAAASUVORK5CYII=", "contentType": "image/png" } ] }