1%%{init: {'theme': 'forest'}}%%
2stateDiagram-v2
3    [*] --> Draft
4    Draft --> Open : submit
5    Open --> InReview : request review
6    InReview --> Merged : approve
7    InReview --> Open : request changes
8    Open --> Closed : close
9    Merged --> [*]
10    Closed --> [*]