Actually, in the Model View Options, I have my walls set to appear as Solid. The "solid" color shown is gray and NOT black.
In the Wall Settings dialog, I can change the 'Cut Fill' Color to black. But that will also affect the appearance of my walls, when i want to show the wall's composition in plan.
If I'm correct in this, is there a way to change the color of 'solid' in the Model View Options dialog?