Guidance understanding a theme

I hope this isn’t a terribly inappropriate question to ask here. I’m new to WordPress, and I’m trying to understand it better. I wanted to get my head better wrapped around the idea of a framework so I grabbed the free Cherry framework and free multi child them to start.

The last few days I’m been digging through it but I’m very confused about one little thing. This question isn’t specific to the framework so I’m not posting it in their forum (it’s kind of a ghost town anyway).

The child theme demo is here: http://demo.crocoblock.com/free-themes/free_multi_wordpress/. The first three circular icons…where are they located? Typically with any image I can find the location by right clicking and copying the image location. In the parent theme I’m able to find where the icon is (the parent uses a different icon as the theme).

Is the icon being pulled from another site/source? Because it’s nowhere in the folders for the parent or child theme.

Thank you.