The main reasons were:

- Couldn't buy buttons with white LEDs. This means we'd have to have 2 different hardware variations for different button/screen colours (ie, green LED won't show through red or blue panels, and so on).

- Not enough room for lighting the rotary control. This would also be a fairly fraught with danger experience, as we don't know a lot about light propogation in plastics for uniform lighting, etc. People dedicate their entire lives to this sort of thing...

I've never had a problem with the mk2 as the button shapes are so distinctive, it's easy to tell by feel which button is which.

Hugo