wt/resources/font-awesome/LICENSE.txt

License

The Font Awesome font is licensed under the SIL OFL 1.1:
  http://scripts.sil.org/OFL

Font Awesome CSS, LESS, and SASS files are licensed under the MIT License:
  http://opensource.org/licenses/mit-license.html

The Font Awesome documentation is licensed under the CC BY 3.0 License:
  http://creativecommons.org/licenses/by/3.0/

Attribution is no longer required as of Font Awesome 3.0, but much appreciated:
  Font Awesome by Dave Gandy - http://fontawesome.io

Full details:
  http://fontawesome.io/license