Here are additional functions for creating and working with faces.
This function returns a list of all defined face names.
This function returns the face number of face face. This is a number that uniquely identifies a face at low levels within Emacs. It is seldom necessary to refer to a face by its face number.
This function returns the documentation string of face face, or
nil if none was specified for it.
t if the faces face1 and face2 have the
same attributes for display.
This returns non-
nil if the face face displays
differently from the default face.
A face alias provides an equivalent name for a face. You can
define a face alias by giving the alias symbol the
property, with a value of the target face name. The following example
modeline an alias for the
(put 'modeline 'face-alias 'mode-line)
This macro defines
obsolete-face as an alias for
current-face, and also marks it as obsolete, indicating that it
may be removed in future. when should be a string indicating
obsolete-face was made obsolete (usually a version number