Add resolved class to resolved topics

Hi, it would be nice to have a class added for resolved topics, so we can customize them with CSS:

function bpbbst_filter_topic_classes($classes,$topic_id){
            $is_resolved = ( 2 == get_post_meta(topic_id, '_bpbbpst_support_topic', true ) );
            if (!$is_resolved){
                $classes[]='bpbbst_resolved';
            }
            return $classes;
        }

add_filter('bbp_get_topic_class','bpbbst_filter_topic_classes',10,2);

http://wordpress.org/extend/plugins/buddy-bbpress-support-topic/