@simon @SomeoneElse yeah I don't think the language issue won't be resolved. But it is an indicator of the general narrowness of the schema.
I assume, MapTiler schema was born out of the Mapbox one, so there has been a lot of work poured into it. I wonder why not use it for a start, given it's the most popular on the market.
@zverik @SomeoneElse IP/licensing reasons (that isn't really a secret).