mapserver/doc/mapobjects.md

Supported map objects (markers)

Player bones

Digiterms

See: https://github.com/Pyrollo/digiterms

Digilines

See: https://github.com/minetest-mods/digilines

POI

All supported icons: https://fontawesome.com/icons?d=gallery&s=regular,solid&m=free

Protector

Travelnet

See: https://github.com/Sokomine/travelnet

Trains from advtrains

More

And various more, see: setup.go