This does not answer your question, but I remember a long time ago I saw some screen-shots of org-mode where some keywords were changed to icons (png images, I think). The screen-shots were pretty, but I don't know if the project was further developed or not.
Here a thread about it http://www.mail-archive.com/emacs-orgmode@gnu.org/msg14736.html -- Darlan Cavalcante At Sat, 11 Jun 2011 20:56:46 +0200, harven <har...@free.fr> wrote: > > Hi, > > I use emacs 23.2.1 together with org 6.33. > I am trying to add the character ▶ as a todo keyword with no success. > > Starting with emacs -Q, I execute the following > code in the scratch buffer > (setq org-todo-keywords > '((sequence "\u25b6" "ok") > (sequence "\u25b8" "ok"))) > Then I open a simple .org file containing > > * ▶ first > * ▸ second > > Only the second keyword is highlighted. > Why is it not the case with the first keyword ? > > Thanks, > -- > Harven >