Whistler are having issues with their website at the moment meaning trying to update the radio via EZScan gives you an error message.
Whistler have acknowledged the error and say a fix should be available within a couple of weeks.
More information is available on this thread at Radio...
The LED colours can be changed on the Whistler TRX-1 and TRX-2, but the colour settings on one radio, even the same make and model, may not match another.
Here are my current colours that work for my TRX-2e. I program directly via the radio when on a channel so I can see the colour it produces...