I'm dyslexic and the contrast helps. I can't look at the screen when I type, so I look over the mess after the fact. Remember the screens in The Matrix? That's pretty close to what I see after a long day on the PC. If I could just get that flying thing down...Scott, not to get off topic, but is there a reason why you post in yellow? LOL
One would assume white text on a black screen would be contrast enough. I gave up on trying to figure it out long ago.