This a new req class for core
New scale parameter with values

\collections\buildings\style\night\map?legend=true|topLeft....
\collections\buildings\style\night\map?scale=true|topLeft....
\collections\buildings\style\night\map?compass=true|topLeft....
\collections\buildings\map?legend=true|topLeft....
\collections\buildings\map?scale=true|topLeft....
\collections\buildings\map?compass=true|topLeft....

This a new req class for an extension of the maps core.
\collections\buildings\style\night\legend (the legend as a renderization or a list of symbols and descriptions)
\collections\buildings\legend (the default style legend as a renderization or a list of symbols and descriptions)
This last possibility reflect the need to synchronize the styles API and the maps API.