I haven't, but I'm under the impression some scenarios might be impossible to express in Mermaid. For example, how would you render the example svg from the pag

I haven't, but I'm under the impression some scenarios might be impossible to express in Mermaid. For example, how would you render the example svg from the page? It is essential to describe that while the ping was sent in state 3, some actions are taken first and then client 2 handles the ping in state 6.