This was originally one of the neatest small addons on the XF1 versions. I was glad seeing rellect importing this one over to XF2. Using it over a year now and it helps immensely to detect links in posts and is visually appealing. Thank you.
My only gripe is I'd like to have an option to have a different icon for internal links. It looks a bit silly on large explanatory posts leading to various parts of your site.