Adding a Simple Icon
One of the simplest ways to add an icon to a report is to use a Label element.
The basic procedure is to go to the FA Icons web page where all the available icons are displayed, find the icon you want to use, and click it. You'll be taken to a detail page for that icon and you'll see the HTML for implementing it, which looks similar to this:
<i class="fa fa-plus-square"></i>
Select and copy the class attribute from that code (highlighted in yellow) and paste it into your definition, in the Label element's Class attribute value, as shown above.
Class names are case-sensitive!
In order to size the icon (relative to its container), you can use one of these additional classes, in combination with the icon class:
fa-lg, fa-2x, fa-3x, fa-4x, fa-5x
Classes for sizing and other usage details are discussed in the FA Examples web page.
We've exaggerated the spacing in the Class attribute value in the image above to make things a little clearer. One space between classes is all you need. And the resulting icon looks like this:
Give it a try and experiment with different sizes.