Buffer-font-mode doesn't switch to fixed-pitch for code-blocks

[TS-CUBED]

I use poly-markdown and want to use variable-pitch mode fonts for the markdown text, and fixed mode fonts for the code blocks.

Mostly using Julia, but also Python (and others occasionally).

Is it possible to do that? I did try something like:

  (default ((t (:inherit variable-pitch))))
  (markdown-header-face ((t (:inherit serif))))
  (markdown-code-face ((t (:inherit fixed-face))))

in custom faces, but that doesn't seem to do the trick.

It does work in pure markdown-mode, but not in poly-markdown-mode.

[vspinu]

If it works in markdown it should work in polymode buffer. markdown-code-face affects only anonymous blocks where the mode is not identified. If you want to change all code blocks where modes are identified then I am afraid it's much more dificult if not outright imposible. polymode is using emacs indirect buffers and as far as I know the default font is the same across all buffers. (related).