This template comes with 2 commercial extensions for free: Shack Slides and Easy Social Icons.
Shack Slides
Shack Slides is the way to intensify your site with images that have style, are fully-responsive and have awesome effects.
We use Shack Slides in the slideshow for the Onyx demo.
Documentation for Shack Slides
Easy Social Icons
Easy Social Icons is a lightweight module that let you quickly add and manage all your social network links.
We use Easy Social Icons to show social networks icons for the Onyx demo.