Variable: show-paren-when-point-inside-paren
show-paren-when-point-inside-paren is a customizable variable defined
in paren.el.gz.
Value
nil
Documentation
If non-nil, show parens when point is just inside one.
This will only be done when point isn't also just outside a paren.
This variable was added, or its default value changed, in Emacs 25.1.
Probably introduced at or before Emacs version 25.1.
Source Code
;; Defined in /usr/src/emacs/lisp/paren.el.gz
(defcustom show-paren-when-point-inside-paren nil
"If non-nil, show parens when point is just inside one.
This will only be done when point isn't also just outside a paren."
:type 'boolean
:version "25.1")