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Next: <a href="Using-the-Mouse.html#Using-the-Mouse" accesskey="n" rel="next">Using the Mouse</a>, Previous: <a href="Menus.html#Menus" accesskey="p" rel="prev">Menus</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="License.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p>
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<a name="Faces-1"></a>
<h2 class="chapter">18 Faces</h2>
<p>VM uses Emacs faces to emphasize text in the folder and summary
buffers.  In addition to using the predefined faces of Emacs, VM also
defines several faces of its own.  You can do <code>M-x list-faces</code>
inside Emacs to see what faces have been defined.  You can also define
your own faces using Emacs primitives for doing so.
See <a href="http://www.gnu.org/software/emacs/manual/html_node/emacs/Faces.html#Faces">Faces</a> in <cite>the GNU Emacs Manual</cite>.
</p>
<a name="index-vm_002dhighlighted_002dheader_002dregexp-1"></a>
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<p>In the folder or presentation buffer, the header contents of headers
matched by the <code>vm-highlighted-header-regexp</code> variable are
displayed using the face named by <code>vm-highlighted-header-face</code>.
This variable is ignored under XEmacs if
<code>vm-use-lucid-highlighting</code> is non-<code>nil</code>.  The XEmacs
<code>highlight-headers</code> package is used instead.  See the
documentation for the function <code>highlight-headers</code> to find out
how to customize header highlighting using this package.
</p>
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<p>URL&rsquo;s that occur in message bodies are displayed using the face
named by <code>vm-highlight-url-face</code>.  Typing Return on such URL&rsquo;s or
clicking button-2 has the effect of sending the <acronym>URL</acronym> to an external web
browser.  See <a href="Using-the-Mouse.html#Using-the-Mouse">Using the Mouse</a>.  Searching for <acronym>URL</acronym>s in a
large message can take a long time.  Since <acronym>URL</acronym>s often occur near
the beginning and near the end of messages, VM offers a way to
search just those parts of a message for <acronym>URL</acronym>s.  The variable
<code>vm-url-search-limit</code> specifies how much of a message to search.
If <code>vm-url-search-limit</code> has a positive numeric value <var>N</var>, VM
will search the first <em><var>N</var> / 2</em> characters and the last
<em><var>N</var> / 2</em> characters in the message for <acronym>URL</acronym>s.
</p>
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<p>The face named by <code>vm-mime-button-face</code> is used to display the
textual buttons that trigger the display of <acronym>MIME</acronym> objects.
</p>
<p>See <a href="Summaries.html#Summary-Faces">Summary Faces</a>, for the faces support in the Summary buffer.
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