I use
the following settings to toggle src block syntax
highlighting:
#+begin_src emacs-lisp
;;;
export to PDF with src blocks syntax highlighting.
(setq org-latex-listings 'minted)
(add-to-list 'org-latex-packages-alist '("newfloat" "minted"
"color"))
(add-to-list 'org-latex-pdf-process
'("latexmk -shell-escape -bibtex -f -pdf %f"))
(setq org-latex-minted-options
'(("frame" "lines")
("linenos" "true")
("bgcolor" "bg")
))
#+end_src
In
attachment, has the org-mode template file.