The SVGIcon object can be used to add a SVG icon from Font Awesome icon library.
Position the cursor over your publication where you want the top left corner of your Icon to appear. Hold down the left mouse button and drag the cursor to where you would like the opposite corner. When your Icon reaches the desired size and shape, release the mouse button. 

You can choose the appropiate icon from the right Properties Panel by selecting or writing the appropiate icon-name. More than 800 different icons are available.

Take a look at Font Awesome to preview the icons here:

You can customize the icons by setting the attributes for the outline and interior colors using the Style Panel.

Use the Style Panel to customize the Icon appeareance (fill color, stroke color, transparency, stroke width...)

SVGIcon objects are created using <svg> HTML tag.