Apple tells us not to use hard-coded colours like .black, but sets the default for scrolling text views to .black, causing text to be rendered in black on dark grey when in Dark Mode. Here’s a simple and universal fix.
Dark Mode
Global Dark Mode poses problems with styled text which cannot be solved well without giving the user control over the mode used by that app.
Important improvements for Sierra and High Sierra, and support for Dark Mode which looks gorgeous in Mojave.
It’s not just inversion of display colours, but has colour tinting from the Desktop, accents which change the colour of controls, and all icons need to be redesigned. Just to be cool?
The Eclectic Light Company 