Easy Picons
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To enable displaying picons, simply put the following line in your
`~/.gnus' file and start Gnus.
(setq gnus-use-picons t)
(setq gnus-treat-display-picons t)
and make sure `gnus-picons-database' points to the directory
containing the Picons databases.
Alternatively if you want to use the web piconsearch engine add this:
(setq gnus-picons-piconsearch-url
"http://www.cs.indiana.edu:800/piconsearch")