Remapping a face in font lock mode

Question

Given this headline:

** Title
Title Title Title

The headline has the face "org-level-2" applied. This face has been applied by means of a regexp, using font-lock.

Let's assume that "org-level-2" is set as follows:

((t
 (:height 1.5
  :weight bold 
  :extend nil 
  :foreground "black")))

Now, I'd like to apply a custom face for all occurrence of "Title":

(defface my-face
  '((t :foreground "red"))
  "test")

(font-lock-add-keywords nil
  `(("Title" . 'my-face)))

The word "Title" in the headline should have a relative height of 1.5, a bold weight and a red foreground. However, it is just red, with normal size and normal weight.

I'd like both faces to "mix" together. How can I achieve this?

Is font-lock the way to go if i want to remap faces based on regexp?

Answer 1

To make my-face inherit from org-level-2, you can add :inherit 'org-level-2 to the definition of my-face. This way my-face will have the right size and weight.