Main Page/configure box
From Navit's Wiki
Most of Navit's configuration options are changed by editing Configuration. A List of all config options is also available for power users. You can configure all aspects of Navit, including GUI, Navit looks and Map Layout.
Navit can use different Maps, including OpenStreetMap, Garmin maps and Marco Polo Grosser Reiseplaner maps. For a quick start, download a map from maps.navit-project.org.