Preferences->Colors

[Allan Rae]

1.  In English, colours is spelled colours ;-)

2.  It doesn't work.  I took a quick look at the input processing in
    Colors::input() et al and it seems that the Modify button is disabled
    almost everywhere unless V=0 or 1 and S=0.
    
Hopefully you are already aware of this, Angus, because I can't repeat
your claimed colour setting tests.

BTW, I've committed your patch from 23rd November.

Allan. (ARRae)