How to use "true color" like autocad

I’m customizing my display modes, and there’s one mode I want to change so that the edges of surfaces are all the same color (black), but nothing happens when I do this; it still shows the edges in the layer color. Additionally, I’d like the layers with a specific print color to appear in that specific color instead of the black I’m setting for everything else. Something similar to using monochrome in AutoCAD but allowing true color for certain elements so they appear in the specific color I choose, not in monochrome. I’m applying all of this to the edges of surfaces, not to curves. Thanks!