Portfolio View Modes?

Where/how are the custom view modes for the dexp_portfolio content type created?

If you create a Pressa site from the demo database, these custom view modes get created (Portfolio Grid, Portfolio Classic, Portfolio Masonry, Portfolio Text) however if you do not use the demo database and just create a site and add the Pressa theme and drupalexp custom modules, they do not get created.

I've searched everywhere in the dexp_portfolio and dexp_viewmodes modules and there is nothing in there of how those custom view modes get created.