Before treesit.el went to set those variables, there have been already a bunch of packages based on outline-minor-mode for partitioning code into sections using comments only by highlighting headers and providing navigation, folding, etc. inspired by emacs-lisp-mode's outline-regexp settings. Such ones enable a feel of "literate" programming by bringing outline-mode features to code section delimited by headings (special comments like ";;;", ";; *") using just comments regardless of code semantic. The above is my use of outline-minor-mode, maybe other people have different use cases. treesit.el makes the configuration harder by the additional variable setting. I wish there's a hook like treesit-after-major-mode-setup-hook to let people fine-tune or even undo settings, but of course treesit-disable-features to prevent any execution from the start is still better. Daanturo On Nov 21 2024, at 1:50 am, Eli Zaretskii wrote: > > Cc: "74412@debbugs.gnu.org" <74412@debbugs.gnu.org> > > Date: Thu, 21 Nov 2024 00:06:41 +0700 > > From: Daan Ro > > > > Personally I also find treesit's decision to set outline variables > > somewhat intrusive. > > I don't understand why. These variables are meant to be set by modes, > so treesit.el uses them exactly as intended. >