See the documentation for XlSuite::LinkWithIcon for the full details.

This plugin includes images by Mark James.  The icons are available
at: http://www.famfamfam.com/lab/icons/silk/

The icons are licensed under a Creative Commons Attribution 2.5 License.
The license text can be obtained by visiting:  http://creativecommons.org/licenses/by/2.5/

== Installation
Copy the files from <tt>vendor/plugins/link_with_icon/assets/</tt> to <tt>public/</tt>.
You may also replace the icons with any other ones you wish, as long as they
are stored in <tt>public/images/icons/</tt> folder.