With a fresh install of the Xara theme, the font page slider does not work out of the box and there is no documentation on how to resolve this.
Install Xara free theme. Enable theme. Go to the theme settings and open the 'Homepage Slider' tab. There is an empty text area for the Slider Code and a dead link to the docs for the slider.
Include the code in the install profile or provide a new link to the docs (which I cannot find).