syntax highlighting in source blocks

Question

I thought that org-mode highlighted source blocks with the relevant mode. So for example:

#+BEGIN_SRC clojure
(defn plus [a b]
  (+ a b))
#+END_SRC

This would show up with the syntax highlighting one would expect if in a Clojure buffer.

For some reason, my setup is just showing the above example in one monotone of gray.

Answer 1

Org-mode fontifies these blocks if you enable the corresponding setting. Try:

(setq org-src-fontify-natively t)