If you include a wide character, such as a fancy quote, in a graphviz source file for use with the file parameter to the graph directive, you get the following error:

[[!graph  Error: Wide character in subroutine entry at /usr/share/perl5/IkiWiki/Plugin/graphviz.pm line 57.]]

Note, this is what renders on the resulting wiki page, not something that you see on the command line. Since dot supports UTF-8, I would expect this to work.

I'm unsure if this is a bug in the graphviz plugin, or in the perl module it depends upon, but figured I would start here.

This reminds me of table can not deal with Chinese —Jon, 2020-11-02