Man pages matching name gset_marker_colr_ind in section 3ncarg:

gset_marker_colr_ind.3ncarg.en	debian 10 / libncarg-dev
gset_marker_colr_ind.3ncarg.en	debian 11 / libncarg-dev
gset_marker_colr_ind.3ncarg.en	debian 12 / libncarg-dev