Default LED notifier

Just bought (and about to return) the HTC One M8 because the LED notifier/blinker is a shocker. It is very small, only has Red, Green and Blue (!!) and no apps like LED notifier can manipulate it.

My old S3 was great and had a lovely big LED blinker but am considering the Z2 as I fancy a change. Can someone please reassure me that the LED is big, has all the colours and will work with an LED app?

Thanks.
Current Device: LG G2
Rom: Changes weekly