Quick fix for excessive brightness, tweak Brightness and Contrast settings on your monitor. Sure, being able to set the background to a REALLY pale blue might be nice. But setting it to black is just trying to make it look like something familiar, which I honestly believe makes it even harder to learn how Revit is SUPPOSED to work. The appearance of AutoCAD leads to AutoCAD like decisions, which are wrong in Revit about 99% of the time.
And color on screen to mean lineweight means I can't use color on screen to represent something architecturally important, like red for rated assemblies in a code coordination view. THAT means more to me than knowing how heavy the line is going to be. Yes, it takes a little while to get used to, but once you start doing MORE you realize DIFFERENT isn't so bad.
Gordon