From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric S Fraga <ucecesf@ucl.ac.uk>
Subject: Re: [org-beamer] \alert
Date: Mon, 25 Jan 2010 10:58:42 +0000
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(mistakenly sent this only to the OP... resending to list as well)

At 24 Jan 2010 20:10:03 +0100,
Sven Bretfeld wrote:
> 
> Hi
> 
> Is there any Symbol in org-beamer for \alert{Text}? In presentations
> \alert is recommended instead of italics. We could even think of
> translating text enclosed in slashes / ... / to \alert{} by default in
> the beamer class.

There was a long discussion about this back in November on this
mailing list.  Essentially, you can add this functionality yourself:

--8<---------------cut here---------------start------------->8---
(setq org-emphasis-alist (quote (("*" bold "<b>" "</b>") 
      				 ("/" italic "<i>" "</i>")
      				 ("_" underline "<span style=\"text-decoration:underline;\">" "</span>")
      				 ("=" org-code "<code>" "</code>" verbatim)
      				 ("~" org-verbatim "<code>" "</code>" verbatim)
      				 ("+" (:strike-through t) "<del>" "</del>")
      				 ("@" org-warning "<b>" "</b>")))
      org-export-latex-emphasis-alist (quote 
      				       (("*" "\\textbf{%s}" nil)
      					("/" "\\emph{%s}" nil) 
      					("_" "\\underline{%s}" nil)
      					("+" "\\texttt{%s}" nil)
      					("=" "\\verb=%s=" nil)
      					("~" "\\verb~%s~" t)
      					("@" "\\alert{%s}" nil)))
      )
--8<---------------cut here---------------end--------------->8---

Note the last entry in each of these variables; the other elements in
each are their default values.

HTH,
eric