icon frontpage

Hi,
when looking at the Customizr frontpage (http://demo.presscustomizr.com/) below the slider there are some icons shown in 3 big circles.

I’ve now installed the theme because I want to use icons like these, however, it seems as if they do not come with the theme?
Right now I can only make the circles show pictures I’ve uploaded my self.

Does anyone know if the icons are somehow available in the theme? Or should I make / find and upload them my self?

Thanks in advance!