Shochi - I am also using Windows 10, though not the pro version. I do have it set to choose a color from my background, but the only thing that changes in my windows is the title bar of any given program, not the in-program background itself.
Ego Eram - I did see that, and had found it before I posted. I have the options of Blue and Light under Color Schemes, and neither one changes the actual background of the window, just the shading of the toolbars.