Gede allow you to choose your page template type. In the demo the front page is used Image Page Template. You can change the type in Admin panel > Setting > Reading > Static Page > Front Page > Your Page Template.
There is 6 templates for a page.
FOR IMAGE, SLIDER, and VIDEO TEMPLATE will explain in each article.
There is also work template as portfolio.
Default page is ordinary page like blog loop with no options and default header background. You can choose your default header background in option > Header Options > Header Background Default.