Can't read color without device freezing

[NHurst99]

I only want to get the color of an LED, but I want to leave the actual setting to the default program, or whatever is using it right now, my code just basically checks the color of the mouse, but when I run it, it stops changing the color of the mouse. Is there a way that I can simply just get the color without having to worry about setting anything, like a "pass-through" of sorts?