Red is a very common color that has different meanings and uses in different cultures and fields. For example, in Chinese culture, red is usually regarded as an auspicious and lucky color, so it is often used in important occasions such as weddings and New Year.
Causes of red screen
A red screen, may be caused by some problems with the monitor. For example, the monitor's cable may be loose or damaged, or the monitor itself may be faulty.
Using a red screen to create atmosphere
If you are on a video call with a close friend and want to create a warm atmosphere, you can use a red screen. A red screen can achieve this effect and make your face look more comfortable.