Task: I want to increase the brightness to 20 because I don't like it as it is.
Steps:
Tap on the mid of the screen
Tap again on the mid of the screen
Tap on the three dots icon at the top right corner of the screen
Tap on the more operations option
Tap on the brightness option
Tap on the plus icon of auto 
Tap on the plus icon of auto 
Tap on the plus icon of auto 
Tap on the plus icon of auto 
Tap on the plus icon of auto 
Tap on the plus icon of auto