Alienware AW3821DW 37.5" 1600p 144 Hz Curved Gaming Monitor - Manual (Page 50)

50 | Operating the monitor
Spectrum When you select On , the AlienFX lights of 4 zones
glow and change colors in the sequence of the color
spectrum: red, orange, yellow, green, blue, indigo, and
violet.
Reset AlienFX
Lighting
Resets all settings under the AlienFX Lighting menu to
the factory defaults.
Audio
Volume Allows you to set the volume level of headphone
output.
Use the joystick to adjust the volume level from 0 to
100.
Reset Audio Resets all settings under the Audio menu to the factory
defaults.