Go forward to Picon Requirements.
Go up to Picons.

Picon Basics
------------

   What are Picons?  To quote directly from the Picons Web site
(`http://www.cs.indiana.edu/picons/ftp/index.html'):

     "Picons" is short for "personal icons".  They're small,
     constrained images used to represent users and domains on the net,
     organized into databases so that the appropriate image for a given
     e-mail address can be found.  Besides users and domains, there are
     picon databases for Usenet newsgroups and weather forecasts.  The
     picons are in either monochrome `XBM' format or color `XPM' and
     `GIF' formats.

   Please see the above mentioned web site for instructions on obtaining
and installing the picons databases, or the following ftp site:
`http://www.cs.indiana.edu/picons/ftp/index.html'.

   Gnus expects picons to be installed into a location pointed to by
`gnus-picons-database'.