Cygery Custom NavBar
Cygery Custom NavBar supports different layouts for both device orientations, i.e., landscape and portrait. Items are always added to the layout of the current orientation. To add an item for the other orientation simply rotate your device. Note: You might have to disable a rotation lock to change the orientation.
Other apps, e.g., ebook readers, are unable to adjust the screen brightness while Cygery Custom NavBar is running.
There is no fix for this issue.