For the LED settings, each DPI profile can be associated to a LED display mode, and the LED color can also be fine tuned by adjusting the RGB values.

So that every DPI settings can be associated with a unique color effect.
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For Basic LED color selection:
1. Select a DPI profile that the color scheme will be customized and associated to.
2. Adjust the RGB slider to the RGB setting for the color desired. For quicker adjustment, look up the RGB chart for the RGB value, from any RGB chart online, for ex.http://www.rapidtables.com/web/color/RGB_Color.htm
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For Special effect:
Xornet II also has several color scheme effect that you can set the LED to.

Spectrum:Once selected, the LED will cycle through the RGB color spectrum.
Rapid Fire: LED will show the customized color you selected, and will flash white light with every click.
Breathing: LED will cycle slowly from Off to the customized color.

Press Apply after every change to save it to the mouse.