@mitcorb said:
Do they pick up their scales and measure images on the screen?
lol
I've used Archicad, and it's default background is white.
I suppose that this is just a question of comfort and habit: Photoshop interface is ugly, but it has become the standard.
What they say is that a black background is more relaxing and, after 8 hours spent facing a monitor, you won't have such an headache and sick eyes.
One good feature that I discovered is that, if you print what you have on your screen (with a black background style), you'll get a negative print: a white sheet with black lines. But if you do a rendering, it will be saved as you see it on your screen.
That's smart! Thanks again to the developers of SU.