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(gnus)Emacs Enhancements

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Emacs Enhancements
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   Starting with version 21, Emacs is able to display pictures and
stuff, so Gnus has taken advantage of that.

   Gnus-specific tool bars will be used if Tool Bar mode is on.
Currently the group, summary and message buffers have tool bars defined.

   MIME image types may be displayed internally if Emacs was built with
appropriate support (see variable `image-types').  `X-Face' headers may
be rendered as images internally if you have appropriate support
programs (Note: X-Face).  You can play sounds internally if Emacs was
built with suitable audio support; otherwise Gnus will attempt to play
sounds externally.

   A simplified version of the XEmacs Smiley support for "emoticons"
(Note: Smileys) is available on graphical displays under the control
of `gnus-treat-display-smileys'.  Text `smiley' faces--`:-)', `:-/',
`:-(' and the like--are mapped to pictures which are displayed instead.
The mapping is controlled by a list of regexps `smiley-regexp-alist'
mapping matched text to image file names.  It contains matches for
`smiley', `wry' and `frowny' by default.

   There is currently no Emacs support for `Picons' (Note: Picons),
but there is no reason why it couldn't be added.