gEDA-dev: PCB Close confirmation dialog

[DJ Delorie]

> Unfortunately, LCD panels often have refresh rates which are fixed
> at 60Hz. I guess the "persistence" may be longer than a CRT phosphor
> though, so perhaps that doesn't matter.

I happen to know I'm sensitive to slow refresh rates on CRT monitors
(I get headaches under 72Hz), but I've never had a problem with LCDs
at 60Hz.

I use light-on-dark for gschem and xterm, and dark-on-light for
firefox, emacs, and pcb.  However, my "light" background is usually a
pastel or light grey, not glare white.