This template comes with 2 commercial extensions for free: Shack Slides and OSTimer Pro. In addition Mondrian is integrated with JCal Pro.
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 Mondrian demo.
Documentation for Shack Slides
OSTimer Pro
OSTimer is best Joomla countdown clock extension.

We use OSTimer Pro in the Mondrian demo.
JCal Pro
JCal Pro is best Joomla calendar extension.

We use JCal Pro to show events for the Mondrian demo.