Trackball light

Is there a possibility to get a switch to disable the light in the trackball. When you are in a dark auditorium using the open key is not very subtle to use with the blinding white light in the trackball. Anyone else with the same problem?
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Hello, So just thought of this... What if you replaced the trackball with a black track ball? I found this one on Amazon, its 34mm, which should match the trackball on consoles https://www.amazon.com/Perixx-18021-PERIPRO-303GR-Trackball-Compatible/dp/B08DD6GQRV/ref=sr_1_16?dchild=1&keywords=Trackball+replacement&s=pc&sr=1-16&th=1