"Chuck Roberts" <cro### [at] alleganisdorg> wrote in message
news:39C22E9E.5D30624D@alleganisd.org...

<snip>

It might, in some cases, be worth distinguishing between usable values (for
example colour components greater than 1 or less than 0) and "normal" values
(0-1 in the case of colour comps.).

A new user being told that the range for a colour component is - infinity to
+ infinity is being somewhat led astray.

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