This theme is just zones. You can use this theme to show simple data on the projector, putting the browser in full screen mode. Or this theme can be used to develop new theme from scratch. Your choice.
Some of the modules in Cornerstone can combine content of "simplier" modules. Articles can contain videos, pictures and even questionnaire forms, that are stored in particular modules. Shop items can store pictures in the Images module, and articles in a linked article module.