Background color of LaTeX fragments in Org mode

Question

How can I control the background color of my LaTex fragments in Org-mode?

I am using the badwolf-theme package, and this is what I get:

I would like the background color of my formulas to match the background color of my org buffer.

Here are my current org-format-latex-options:

Answer 1

I've had this problem before, sometimes deleting the ltximg folder helps reset things from the previous theme.

Answer 2

I had a similar issue (in my case it was the foreground-setting that I couldn't control appropriately). I was able to fix it by employing xcolor in the conversion process.

Put this in your init.el and execute it by pressing C-M-x or by restarting emacs:

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

Then simply recreate your images (delete the folder ltximg).

Answer 3

I would try changing the :background from default to "Black"

Somehow my :foreground default got changed from white to black and it was really annoying. Note that it's expecting a stringp so quotes are needed. You might be able to put hex string in there. Haven't tried myself.