Do you change the background color to make it easier on your eyes?

If so; to what?

I use a solarised theme, a bit like the one here: [url]]

There are also a few built-in light mode themes in Scrivener now, both change the editor background colour. I used Purple Haze for around a year. I prefer a yellow-ish or beige colour behind text.

Yes, I have a very light beige background in both the Editor and Binder because it’s easier on my eyes than stark white. I’ve also changed pretty much everything that can have the color customized to personal preferences just because it pleases me.