Dark White
Dark White sounds contradictory, but it does seem easier to read than system color. The dialog on the left is showing "dark-white.jpg" background for Mac Dark Mode.
The middle is "light-white" with some jags, added to replace Windows' default grey. On the Mac, this background required its negative "dark-white" for dark mode on left.
The Background feature in My Prefs was added to make it easier to read your screen. Nothing succeeds like excess, so "light-hue" (right), and "light-unicorn" are added, too.
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