This is an example of a module being displayed inside the menu dropdowns. This feature can display any module or module position, allowing for multiple modules in the same dropdown.
Third Party Extensions - Compatibility Styling Support
Compatibility styling constitutes basic CSS alterations to better integrate the extensions with the template, rather than full theme integration. Example extensions: K2, Tienda, NinjaBoard, Virtuemart and JomSocial.
RocketTheme Extensions