[O] Let Org-mode support export to PDF with language indicator for src blocks

[stardiviner]

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I found LaTeX can do this:
https://tex.stackexchange.com/questions/342683/specify-box-with-header-around-listing

I want to ask, can Org-mode support exporting to PDF by supporting this?

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[ stardiviner ] don't need to convince with trends.
       Blog: https://stardiviner.github.io/
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