Beside de usual image icons we integrate Font Awesome v.2.0. with over 200 icons. In a single collection, Font Awesome is a pictographic language of web-related actions. Easily style icon color, size, shadow, and anything that's possible with CSS. You can read more about it HERE.
How to add icons
You can use <i></i> or <span></span> . Can be used in buttons, menus, lists etc.