{ "version": 8, "metadata": { "test": { "width": 64, "height": 64 } }, "zoom": 0.5, "sources": { "geojson": { "type": "geojson", "data": { "type": "Point", "coordinates": [ 0, 0 ] } } }, "sprite": "local://sprites/emerald", "layers": [ { "id": "symbol", "type": "symbol", "source": "geojson", "layout": { "icon-image": "generic_icon", "icon-size": { "stops": [ [ 0, 1 ], [ 1, 2 ] ] } } } ] }