Can I change the keypad backlight color on my 7730 from green to white color?

I wonder if the green color comes from a green plastic layer or a green lamp?
Is it anyone who has taken apart a 7730?

Some has done one of the 7500's. Look around for it. I think he had changed it to red

I know you're actually getting tired of that yellow illuminated keypad that we have for the 7730, I know I do. If I were you, I'd actually suck it up as this would void the manufacturer's warranty for the device. Just my $0.02.