I'm just curious, but why do most cad people still use a black background?
I know that in the early days of cad the monitors had low refresh rates which caused the screens to flicker, and black bothered the eyes less, but current monitors don't have that issue, and I would have thought that having a screen that looks like the eventual page to be plotted would make more sense.
That's what we do here, especially since we plot in color with layers set to colors that are relatively consistent so that checking of the drawings is easier.
It reminds me of the use of different pen settings for each color when there are no pens on modern plotters. There we use layer lineweights, and use plines or edit the per line lineweight when something in the layer needs to be emphasized over other items in the same layer.
Similarly architects use tickmarks instead of arrows because it was faster to dimension that way when drawing by hand, but now it doesn't save time, and if one dimension snaps over another, it can cause problems (example 2' dimension and 8" snaps on top of it so that it looks like 2' + 8"). At least with arrows you can see that one arrowhead is missing, and then you know that there is a problem with the string.
These are just some of my pet peeves, but I will listen to valid explanations other than "I'm just used to it that way" or "Architects need to have more style than engineers and ticks are more stylish"