For 33 years, My terminal windows've been #FFFFFF background w/ #00000 text. My thinking when I was 18 years old was that I wanted my windows on the computer to look like paper. I generally only used #FFFFFF on #000000 on airplanes as laptop LCDs could be seen from more angles that way.
With so much display in my face, I am wondering if this is too intense, so I'm trying #FFFFFF on #00000 for a while.
BTW, for #Emacs, I always (&still) use #000000 on #e5e5e5 (or "linen"), which is a bit softer.