We had one more question like that today: http://emacs.stackexchange.com/q/17256/115


--
Kaushal Modi

On Thu, Oct 8, 2015 at 12:21 PM, John Wiegley <johnw@newartisans.com> wrote:
>>>>> Artur Malabarba <bruce.connor.am@gmail.com> writes:

> Actually, we have that already.
> It's a defcustom called custom-theme-directory. It only holds one directory,
> and it is safe to be customised by the user.

In that case, changing the other defcustom to defvar sounds like the right
change.

John