Variable: cpp-known-face
cpp-known-face is a customizable variable defined in cpp.el.gz.
Value
invisible
Documentation
Face used for known cpp symbols.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/cpp.el.gz
(defcustom cpp-known-face 'invisible
"Face used for known cpp symbols."
:type 'cpp-face)