Variable: treemacs-mode-hook
treemacs-mode-hook is a variable defined in treemacs-mode.el.
Value
(treemacs--enable-fringe-indicator-in-current-buffer)
Documentation
Hook run after entering treemacs-mode.
No problems result if this variable is not bound.
add-hook automatically binds it. (This is true for all hook variables.)
Source Code
;; Defined in ~/.emacs.d/elpa/treemacs-20251226.1307/treemacs-mode.el