Some of our themes, templates and kits takes Bootstrap to the next level by minimizing the number of images used. To achieve this, we removed the traditional bootstrap icons and replaced it with a light-weight font called Font-Awesome. This highly praised font will provide you with the same icons using the same class at a smaller file size. You can find out more about Font-Awesome at: http://fontawesome.io/
The Font Awesome webfont, CSS, and LESS files are licensed under CC BY 3.0. A mention of Font Awesome – http://fortawesome.github.com/Font-Awesome in human-readable source code is considered acceptable attribution (most common on the web). If human readable source code is not available to the end user, a mention in an ‘About’ or ‘Credits’ screen is considered acceptable (most common in desktop or mobile software).