Steps to reproduce
the following mermaid code inputted into a mermaid code block:
sequenceDiagram
box Purple Alice & John
participant A
participant J
end
box Another Group
participant B
participant C
end
A->>J: Hello John, how are you?
J->>A: Great!
A->>B: Hello Bob, how is Charly ?
B->>C: Hello Charly, how are you?
Expected result
sequence diagram has shaded by colour each “box”
Actual result
Environment
Error parsing Mermaid diagram!