What are Pictos?
First, they are flat, single color icons that have a picture for each character key of the keyboard. For example, the icons that are on your Site Administration toolbar (the gray bar when you're logged in to your site).
They show up other places, too. You'll see Pictos where you have your location and service times, on buttons used on your home page, and many other places by default.
So how do I use them on a page I create?
Very simple. Use <span class="Pictos>y</span> in the HTML view of your content page. In this reference, the letter "y" would show as a gear - like one you'd see for a Settings button.
What fonts go to what letter or character?
Here's a reference, provided by Pictos:
Updated December 20, 2013