Extract.bbbike.org mkgmap sytels

Does anyone know if bbbike.org styles are open or if they keep them private? I seem to remember they had a couple nice ones back when I used their extract service. But I don’t find info on that.
Also if anyone know of some good styles available for public use I would be grateful.

bbbike people (Wolfram Schneider, thank you) answer me and gave me this: bbbike-world/etc/mkgmap/style at world · wosch/bbbike-world · GitHub
It contains multiple styles used by bbbike extract service.

There is another one at GitHub - Jorisbo/Mkgmap-Mapnik-Style-Garmin: Custom mkgmap style and typ-file for rendering routable Garmin Maps in the Openstreetmap Mapnik layout