What does mechanical keyboard rbg mean?

In the version of the ordinary mechanical keyboard with backlight, the light source is the ordinary LED, RGB refers to the lamp with SMD, which can be customized to a maximum of 654.38+06.7 million colors (the RGB axis of cherry), and RGB refers to the three primary colors of red, green and blue, that is, red, green and blue, which can mix all colors, so that the color of backlight can be customized by software. At present, the most mainstream RGB axes are cherry's, ROMER-G developed by Logitech and Omron, and some domestic brands such as RK's RGB technology.