simple but I do not recall. what is the command to control the screen background? I prefer black.

tools, options, display, colors...

Thanks
Now I can see again

I resisted the move from white to a black background.
 
At 62+ and having many years on the boards, couldn't conceive working with a black background.
 
Changed to working in AutoCAD to a black background, will never go back to white background. Isn't it great?!

Hell yeah it is man, I couldnt fathom seeing the damn blaring whit screen all the time, it even bothers me a little in paperspace!