Setavatarcolors names a function, with lambda list (&REST WORDS):
Sets the base and extra colors of a user's avatar.
#setavatarcolors LOGIN BASE EXTRA
Each of BASE and EXTRA can be specified in a number of formats.
#setavatarcolors mouser #000000 #ffffff #setavatarcolors mouser rgb(0,0,0) rgb(255,255,255)
See also TOOTSVILLE-USER DOODLE for a similar-but-different way to set avatar colors.
Defined in file src/infinity/legacy-ops.lisp.