Ohh... okay! 
It's at the very beginning of the index_light.css or index_besocial.css (i.e. at the beginning of the variant-specific css).
/* Normal, standard links. */
a, a:link, a:visited,
/* Links that open in a new window. */
a.new_win:link, a.new_win:visited {
color: #49643d;
text-decoration: none;
}