{ "version": 8, "metadata": { "test": { "width": 64, "height": 64 } }, "sources": { "geojson": { "type": "geojson", "data": { "type": "FeatureCollection", "features": [ { "type": "Feature", "properties": { "width": 4 }, "geometry": { "type": "Point", "coordinates": [ -10, 0 ] } }, { "type": "Feature", "properties": { "width": 7 }, "geometry": { "type": "Point", "coordinates": [ 10, 0 ] } } ] } } }, "layers": [ { "id": "circle", "type": "circle", "source": "geojson", "paint": { "circle-color": "#fff", "circle-stroke-width": { "type": "identity", "property": "width" } } } ] }