Description

While PlantUML and Graphviz are already two solid options for dumping workflows, I found myself wishing for a Mermaid-compatible flowchart output the other day.

I already wrote this dumper, but before opening a pull request I thought it better to create this issue first and gather general interest or need. It is very possible that this is a niche feature request and should better live as a separate composer package.

Example

Using the simple test workflow, the dumper generates:

graph TD
a([a])
b[b]
c[c]
style c fill:DeepSkyBlue
a-->|t1|b
b-->|t2|c

which in turn renders to

It works exactly as the existing dumpers. Feature wise, it supports place background colors, but doesn't support arrow styling.