Export org-mode code blocks with minted style

Question

I am trying to export org-mode source blocks to pdf via Latex and I use minted to get syntax highlighting. My org file looks like this:

#+latex_header: \usepackage[utf8]{inputenc} %% For unicode chars

#+latex_header: \usepackage{minted}                                              
#+latex_header: \usepackage{xcolor}
#+latex_header: \usemintedstyle{monokai}    %% sets default for all source-code blocks
#+latex_header: \definecolor{dark}{HTML}{272822}   %% custom colour for background

#+attr_latex: :options bgcolor=dark
#+BEGIN_SRC bash -i
    rosrun rosbag topic_renamer.py <in topic> <in bag> <out topic> <out bag>
#+END_SRC

I read on this latex thread, that I have to manually specify the background colour, which is why I use that additional #+attr_latex: specifying bgcolor. That definitely does seem to help, but I cannot get the bash language to be correctly coloured. I get black text on the manually applied dark background:

So it seems the colour of the text is somehow affected by the bgcolor I manually apply to the source-block.

If I change the language, e.g. to c, I get something more like what I expect (which also happens to look pretty cool!):

#+attr_latex: :options bgcolor=dark
#+BEGIN_SRC c -i
    rosrun rosbag topic_renamer.py <in topic> <in bag> <out topic> <out bag>
#+END_SRC

trying to set the style manually for the source-block also doesn't seem to help. Using this:

#+attr_latex: :options style=monokai, bgcolor=dark
#+BEGIN_SRC bash -i
    rosrun rosbag topic_renamer.py <in topic> <in bag> <out topic> <out bag>
#+END_SRC

makes no difference, and I get the same as above, without the style option:

I can see in the generated tex files that options are being passed correctly to the minted block:

\begin{minted}[breaklines=true,breakanywhere=true,bgcolor=dark]{shell}
    rosrun rosbag topic_renamer.py <in topic> <in bag> <out topic> <out bag>
\end{minted}

---

I have the following setup in my init file:

(setq org-latex-listings 'minted
    org-latex-packages-alist '(("newfloat" "minted"))
    org-latex-pdf-process
    '("pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"
      "pdflatex -shell-escape -interaction nonstopmode -output-directory %o %f"))

which was taken from here.

I have tried looking in the list of language names to language modes (a mapping) that org-mode maintains, and see that bash was there, I also added (shell shell) so the name "shell" is mapped the shell-mode. Otherwise I don't really know where to start

EDIT:

Output when editing the .tex file and compiling in terminal:

\begin{minted}[style=monokai,bgcolor=dark]{bash}
  #!/usr/bin/bash
  for (( i=0; i != 10; i=i+1)); do
  echo $i
  done
\end{minted}

some text remains dark and un-readable