Variable: outline--use-rtl
outline--use-rtl is a buffer-local variable defined in outline.el.gz.
Documentation
Non-nil when direction of clickable buttons is right-to-left.
Source Code
;; Defined in /usr/src/emacs/lisp/outline.el.gz
(defvar-local outline--use-rtl nil
"Non-nil when direction of clickable buttons is right-to-left.")