Man pages matching name load_grx_font in section 3alleg4:

load_grx_font.3alleg4.en	debian 10 / allegro4-doc
load_grx_font.3alleg4.en	debian 11 / allegro4-doc
load_grx_font.3alleg4.en	debian 12 / allegro4-doc
load_grx_font.3alleg4.en	debian 13 / allegro4-doc