This app is not very long.
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This is the application that can easily change the brightness.
The app has many kinds of widgets. Dark filter can make the screen darker than the limit of your device.

■Simple layout
Conspicuous brightness level and thick slider bar are designed for ease of use.

■Rich widget
There are widgets which can change to specified brightness with a single tap and widgets which can adjust the brightness in steps.

■Dark filter
The screen can be darker than the limit of your device. It is gentle on the eyes even in dark places and can reduce blue light with this function.

■Home assist
With long press (or swipe up) home button, you can open the app or change the brightness directly.

■Experimental features
You can try out experimental features such as "brightness assist" which moves the floating button to adjust the brightness, and "10 tap adjuster" which allows you to adjust the brightness with 10 continuous taps even after the app is closed.

■Required permission
"Modify system settings" is used to change the brightness.
"Display over other apps" is used for functions such as dark filter.