The color in which the RGB LED lights up is determined by the 24-bit value applied to the LED input.
An RGB LED has only a single input of bit width 24. The most significant 8 bits contain the value of the red color channel, the middle 8 bits contain the value of the green color channel, and the least significant 8 bits contain the value of the blue color channel.
The direction in which the luminous body is pointing.
The name of the RGB LED, which is displayed as text next to the luminous body (on the side opposite the pin).