When I use olivetti-mode
I'd like to have grey margins and the fringe indicators close to the window text, like in this picture:
The problem is that when the fringes are wide the indicators end up being far from the text
Is there a way to move them close to the window text?
Another approach would be to keep the fringes's width to the usual narrow size and paint the margins the same grey as the fringes background, but as far as I understand that can't be done, because the margins take their background colour from the default
face, so it's bound to be the same as the text's background.