Always Brightness Button

There is a button to adjust the brightness on the screen.

Brightness Control – Easy Screen Brightness ManagerTake full control of your device's display with a smart, floating brightness button that is always at your fingertips.Brightness Control lets you quickly check your current screen brightness and adjust it whenever you need. Tap the floating brightness button to open easy brightness controls with + / − buttons or a large center slider for precise adjustment.Key F…