Please implement proper support of mermaid diagram customization.

Usually, you can create mermaid diagrams and override the base theme to customize the look, i.e.:

---

config:

theme: 'base'

themeVariables:

primaryColor: ...

...

---

You can add such theme configuration even in the D360 diagram editor, it reflects the settings in the WYSIWYG, I can even use the download option and get the customized diagram.

However, on the live site the diagram is rendered using the default look.