I agree with your specific comment. And in the more general sense (as I've repeated elsewhere) that user ergonomics of much software sucks big-time. In the cas

I agree with your specific comment. And in the more general sense (as I've repeated elsewhere) that user ergonomics of much software sucks big-time. In the case of red-green (or any) color blindness the simple solution is to provide either a choice of predefined colors and or ways of manually overriding the defaults—and in relative terms the extra programming effort needed to provide this useful functionality is a trivial matter. Sotware manufacturers really do have a damned hide when they omit such important features especially when the need for them is so obvious. BTW, I'm not color blind but I've witnessed situations as you've mentioned, so too would have the program's software developers. That they've not attended to the matter makes it all the more annoying.