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@nvkelso we have added this because of our style similar to OpenTopoMap which also have this for roads. What should I do or change in order for this to be...

Hello, mbtiles file for Slovakia was generated by https://github.com/tilezen/vector-datasource. When you want to use default Mapzen map styles you need to use the schema in which these map styles are...

@matteblair Unfortunately I have no experience with profiling C++ native code on Android. Do you have some hints how can I profile it?

Ok, I have profiled methods `MapData.addFeature(Geometry feature)` and my added method `MapData.updatePolyline(long id, Map properties)` by adding and 586 polylines and on average `MapData.updatePolyline(long id, Map properties)` was faster about...

Ok, profiling scenario was this: add polyline by `MapData.addFeature` then update polyline with `MapData.updatePolyline` and this repeated for 586 polylines. For first couple of polylines it was under 10 milliseconds...

@nvkelso I have noticed that you have added this pull request and also other pull requests from me to 1.9.0. Which is great, thank you :). You do want to...

Ok, I understand. I did not uploaded debug symbols. But I use Firebase Crashlytics, maybe it is creating automatically debug symbols also for native code and uploading them. I can...

@tallytalwar or @matteblair do you have some time to look into this issue?

Reply to comment https://github.com/tangrams/tangram-es/pull/2119#issuecomment-566767128 example of using this parameter in YAML scene is (on Android platform): ``` source: mapzen: urls_mbtiles: ["/storage/emulated/0/offline_maps/belgium.mbtiles", "/storage/emulated/0/offline_maps/netherlands.mbtiles", "/storage/emulated/0/offline_maps/germany.mbtiles"] ``` in my app I allow users...

Ok, I have tried to address your requests and also done some additional cleanup and fixes.