LaTeX template: add titlegraphicoptions

[nim65s]

Hi,

Including a title graphic on a beamer template might require some options, like e.g. height=1.5cm to ensure some image will fit at its place in a given template.

I suggest to add an option for this use case.

Without it, my current workaround is:

header-includes:
- \titlegraphic{\includegraphics[height=1.5cm]{media/cdl23.pdf}}

With it, this could become:

titlegraphic: media/cdl23.pdf
titlegraphicoptions: height=1.5cm

[tarleb]

LGTM!

The only possible issue is that we already have a lot of variables in the default template, and we try to be very conservative when it comes to adding more.

[jgm]

Maybe it should be

[$for(titlegraphicsoptions)$it$$sep$,$endfor$]

or something like that (please test). That would allow one to use a list for titlegraphicsoptions, which I think is consistent with e.g. mainfontoptions, biblatexoptions, etc.
(and it would also work if titlegraphicsoptions was not a list)

[nim65s]

I had to use standalone in the test to check the output for title graphic, but it seems too verbose now, and will probably fail if anything else unrelated change.

I did try pandoc -st beamer | grep titlegraphic, but grep is not available.

NB: Nix CI fail with unrelated error: Package ‘connection-0.3.1’ in /nix/store/2arfgnb82dbh6s3h9fv05rxpr4f6z930-source/pkgs/development/haskell-modules/hackage-packages.nix:72925 is marked as broken, refusing to evaluate.

[jgm]

thanks!