As a rule, the navigation header displays the currently active screen and other action elements (buttons, tabs) of the application.

The header can also be used as the background for the presentation of main information of the active screen. In such case, information is exhibited within the screen.

Warning: The header uses colors defined with the selected color scheme. The exception in case of the Android platform is that the status line is not divided with the darker shade, but is entirely in the primary color of the selected color scheme.