if you want custom color for each style you could do this:
[high]these are alternate instructions, use these INSTEAD of erwin's, NOT BOTH

[/high]
1. Open includes/functions_bbcodeparse.php:
Find:
PHP Code:
$bbcode = str_replace(array('>|||)', '<|||)', '"|||)'), array('>)', '<)','")'), $bbcode);
} // end smilies
UNDERNEATH, ADD:
PHP Code:
// /me Hack
global $post;
$bbcode = preg_replace('#^/me (.*)$#im', "[high]* $post[username] \\1[/high]", $bbcode);
// /me Hack
2. Open newreply.php:
Find:
PHP Code:
$pagetext = trim(strip_quotes($pagetext));
UNDERNEATH, ADD:
PHP Code:
// /me Hack
$pagetext = preg_replace('#^/me(.*)$#im', "[high]* $originalposter\\1[/high]", $pagetext);
// /me Hack
3. Go to your admin CP and add 2 new replacement variables use [ instead of ( and ] instead of ):
Search for Text: [high](high)[/high]
Replace with Text: [high]<font color="red">[/high]
(change the 'red' to some other color if it doesn't fit with your style)
Search for Text: [high](/high)[/high]
Replace with Text: [high]</font>[/high]
You'll have to do step 3 for every style you have...