wmperry(a)gnu.org (William M. Perry) writes:
The only danger I see is someone porting to a windowing system that
doesn't have named colors, or sufficiently different named colors
that 'red3' doesn't work.
By now "red3" and friends can be considered an XEmacs feature. Take a
look at mswindows_X_color_map in `objects-msw.c'.
One problem are the displays with completely different ideas about
colors, such as color TTYs. There you not only cannot depend on the
color names, but you cannot even define them in a meaningful way.