In article ,
NY wrote:
Maybe because people with red/green colour-blindness wouldn't be able to
distinguish between the two. If so, it's a classic case of dragging
everyone down to their level: make everyone suffer from "can't
distinguish" between two white lights for the deficiencies of the
minority.

By all means have "ON" and "OFF" on the lights, or different shapes of
light, but don't throw away colour just because some people can't use
it.

It's red and green which are the problem. A quite high percentage of the
male population have problems distinguishing between them under some
circumstances. It's just convention they are used for on and off. Other
colours would be more suitable.

--
*Time is the best teacher; unfortunately it kills all its students.

Dave Plowman London SW
To e-mail, change noise into sound.