I’m kind of shocked that I don’t see any other complaints about this - but the line separator is nearly invisible. I’m talking about the horizontal line created by markdown — (triple dash).
It’s obvious that you care about the appearance, and making the separator very thin was clearly a design choice. But it’s VERY thin. I urge you to consider that not everyone’s eyes are as sharp as yours. It’d be really great if the line thickness was customizable.
More to the point, though, in dark themes the separators are nearly invisible due to the low contrast. Try solarized dark. Not great in Gotham or Nord either. Hmm, maybe this is a matter of not truly following the solarized color scheme for the lines?