Vimscript syntax highlighting?

Does Discourse support Vimscript syntax highlighting?

I tried a snippet like this:

" This is a comment
echo 123 456
call fnamemodify('./newt', ':a:h')

but I see no syntax highlighting in my browser. I tried these language tags: vi, vim, vimscript, and viml.

I do see syntax highlighting for other languages, e.g. Bash, so I know it’s not a problem with Javascript on my end.

Does Discourse code highlighting not support Vimscript? Or can it be enabled by a forum adminstrator?

For reference: Hack to install a new language for Highlight.JS on a hosted discourse - #14 by meglio - tips & tricks - Discourse Meta (may be outdated, though).