Although I can use mermaid through <$mermaid text="xxx" />
or $$$text/vnd.tiddlywiki/mermaid xxxx$$$
, or create a new type of text/vnd.tiddlywiki/mermaid
tiddler, but these are not very convenient for me.
And there are some areas in the original mermaid plugin that I would like to improve, but I have not rewritten that plugin. I created a markdown-it-mermaid plugin suitable for tiddlywiki.
Fortunately, github also supports this format, so I can not only browse in tiddlywiki, but users on github can also view mermaid