backline

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*** Preserve appearance of collapsed outline headings until window edge

An outline heading does not extend to the right edge of the window when its body is collapsed. This is unfortunate when the used face sets the background color or another property that is visible on whitespace. This package adds overlays to extend the appearance of headings all the way to the right window edge.

#+begin_src emacs-lisp (use-package backline :after outline :config (advice-add 'outline-flag-region :after 'backline-update)) #+end_src

The above advice requires that ~outline-minor-faces-mode~ (from the [[https://github.com/tarsius/outline-minor-faces][outline-minor-faces]] package) is enabled.

#+begin_src emacs-lisp (use-package outline-minor-faces :after outline :config (add-hook 'outline-minor-mode-hook #'outline-minor-faces-mode)) #+end_src

Do not set ~outline-minor-mode-highlight~ (provided by ~outline~ since Emacs 28.1) to a non-nil value, because that is incompatible with this package and ~outline-minor-faces~ (which is an older and still superior alternative). See ~outline-minor-faces~ for details.

*** Screenshots

**** Backline and Outline-Minor-Faces

[[http://readme.emacsair.me/backline-best.png]]

**** Outline-Minor-Faces only

[[http://readme.emacsair.me/backline-better.png]]

**** Neither

[[http://readme.emacsair.me/backline-vanilla.png]]

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