The main Map screen has a few important areas and buttons:
Menu button
in the top left corner opens the main Menu where you can change the navigation target, Navboxes, Logbook and App settings.

Layers button
in the top right corner controls what is displayed on the map. You can choose different map types and additional layers which are displayed on top of the map.

Navboxes
are small information panels with data. They can be moved around the screen freely. And they can be styled with color and transparency.
