Variable: jit-lock-context-time
jit-lock-context-time is a customizable variable defined in
jit-lock.el.gz.
Value
0.5
Documentation
Idle time after which text is contextually refontified, if applicable.
Probably introduced at or before Emacs version 22.1.
Source Code
;; Defined in /usr/src/emacs/lisp/jit-lock.el.gz
(defcustom jit-lock-context-time 0.5
"Idle time after which text is contextually refontified, if applicable."
:type '(number :tag "seconds"))