From mboxrd@z Thu Jan  1 00:00:00 1970
From: Carlos Pita <carlosjosepita@gmail.com>
Subject: Re: Bug: Latex preview fg color w/tikz (known problem, fix
 suggested) [9.1.9 (release_9.1.9-65-g5e4542 @
 /home/carlos/local/stow/emacs-26/share/emacs/26.1.90/lisp/org/)]
Date: Sat, 22 Dec 2018 11:00:02 -0300
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To: Carlos Pita <carlosjosepita@gmail.com>, emacs-orgmode@gnu.org

Hi,

I found out that there is already code doing what I proposed but just
when the backend is not dvipng.

If you want to keep using dvipng you can set:

(let ((dvipng (alist-get 'dvipng org-preview-latex-process-alist)))
  (plist-put dvipng :image-converter '("dvipng -D %D -T tight -o %O %f"))
  (plist-put dvipng :use-xcolor t))

The first setting is necessary to remove -F and -B from the command
line since otherwise the mix of xcolor and color arguments makes
dvipng abort with segmentation fault.

Otherwise, use another backend like imagemagick.

Best regards
--
Carlos