OptionalgroupA base-map layer group, the same vocabulary as BaseMapModule.
OptionalidThe layer id must contain none of these (case-insensitive).
OptionalidThe layer id must contain one of these (case-insensitive).
OptionallayerLayer types (line, fill, symbol, …).
OptionalmetadataThe style's own metadata.group values, for groups the SDK does not name.
OptionalsourceVector-tile source layers (roads, places, poi, …).
How StylingModule.layers picks style layers: by the SDK's base-map group taxonomy, layer type, vector-tile source layer and case-insensitive id fragments. Every constraint given must hold.