Mermaid code syntax highlighting

Things I have tried

I have tried to get the code block for mermaid to highlight, but it doesn’t seem to work. other code blocks work (like python). when I look at the supported languages page Format your notes - Obsidian Help for prism syntax, it does list mermaid, but it still doesn’t work.

I have also tried the plugin by death_au and get the same result.

I have also looked at videos of people showing mermaid code online with obsidian. It doesn’t seem their code has syntax highlighting also.

Is it even possible?

Has anybody gotten it to work?

I’m running the latest version of obsidian. 0.15.9