org: Faces for TODO keywords

 
 5.2.6 Faces for TODO keywords
 -----------------------------
 
 Org mode highlights TODO keywords with special faces: ‘org-todo’ for
 keywords indicating that an item still has to be acted upon, and
 ‘org-done’ for keywords indicating that an item is finished.  If you are
 using more than 2 different states, you might want to use special faces
 for some of them.  This can be done using the option
 ‘org-todo-keyword-faces’.  For example:
 
      (setq org-todo-keyword-faces
            '(("TODO" . org-warning) ("STARTED" . "yellow")
              ("CANCELED" . (:foreground "blue" :weight bold))))
 
    While using a list with face properties as shown for CANCELED
 _should_ work, this does not always seem to be the case.  If necessary,
 define a special face and use that.  A string is interpreted as a color.
 The option ‘org-faces-easy-properties’ determines if that color is
 interpreted as a foreground or a background color.