Writing software with black background and white font? Anyone?
For me, the standard white-colored background and the black font are too much for my eyes to handle. Hopefully, there is one.
A quick search suggests some browser extensions that might work for Gdocs. Darkdocs, maybe?
F.lux lets you tint your screen, and has a black/amber darkroom mode. It's a bit extreme, but it works across the whole OS.
If you want to use a writing program, I believe Quoll Writer has a darkmode option, if you poke around in the settings.
Here's the addon
You can customise it as you please - I have some global preferences that switch text and background colour, like so (green text is just my preference...). It works everywhere, pretty much, but may cause some elements to be invisible (eg the image banner on a fiction page). It has two modes that are useful, "default" and "simple css".
The dark theme here isn't terrible, but it's far from ideal.
In addition to that I use the LanguageTool plugin, both the firefox plugin and the google docs addon. And another addon to generate html for transferring into RR. Then after transferring I apply font alignment and a couple of other things, as the html addon only does html not the style connected to it (css).
You can also try libreoffice, but it requires more effort. Here's a nice dark theme that looks complete.
Edit: Checked Quoll Writer. It does not have a dark mode.
There may be a less clunky way to do it, but I'm not sure.