Support for Drupal 7 is ending on 5 January 2025—it’s time to migrate to Drupal 10! Learn about the many benefits of Drupal 10 and find migration tools in our resource center.
I wrote a blog post for newbies on how to customize this module so that anyone can include custom links and easily find full icon sets to replace the existing ones. I hope some people find it useful: http://jayl.ee/blog/2015/01/29/drupal-follow-block-customization-manual