This article shows how to increase or decrease the various brightness ranges in order to adjust the display on your screen in IGEL OS.
Menu path: User Interface > Display Settings > Gamma Correction
You can change the gamma values for red, green and blue on each screen separately. The scale ranges from 0.10 (dark) to 10 (light) and is set to 1.00 by default.
Gamma Value Red
Changes the brightness curve for the red color portion.
Gamma Value Green
Changes the brightness curve for the green color portion.
Gamma Value Blue
Changes the brightness curve for the blue color portion.