It will then turn a solid color and change to the next color every couple of seconds. Okay so what you do is hold down the forward button on the mouse. How do I change the color of my mouse light? The mouse has a ton of colors and options for customizing the way they are shown from pulsating to solid color. You change the color through the application that is installed with the mouse. You have to download the logitech Gaming software and use it to change the color, mouse profile, adjust DPI settings, etc. How do I change the RGB on my Logitech mouse? Your lighting options will not be saved after closing the software as the mouse does not have any memory to save configurations. The RGB light can be turned off through the Razer Synapse software. Just go to the RGB setting and you can turn it off there.