add a hook to wp-syntax to enable changing syntax colors

To give a chance to blog owners to change Geshi’s coloring or other behavior, how about add a hook like:

*** /home/trac/www/wordpress/wp-content/plugins/wp-syntax/wp-syntax.php~        Tue May 29 06:45:16 2007
--- /home/trac/www/wordpress/wp-content/plugins/wp-syntax/wp-syntax.php Fri Jul  6 17:52:13 2007
***************
*** 73,78 ****
--- 73,79 ----

      $geshi = new GeSHi($code, $language);
      $geshi->enable_keyword_links(false);
+     do_action_ref_array('wp-syntax-init-geshi', array(&$geshi));

      $output = "\n<div class=\"wp_syntax\">";

So blog owners can handle the hook in a hand-made plugin or somewhere else like this:

add_action('wp-syntax-init-geshi', 'wpsc_change_styles');

function wpsc_change_styles(&$geshi)
{
    $geshi->set_brackets_style('color: #000;');
    $geshi->set_keyword_group_style(1, 'color: #22f;');
}