::: Class Shorthand

Assigning classes with `:::` syntax directly on node definitions.

class-shorthand.mmd
graph TD
  A[Normal]:::default --> B[Highlighted]:::highlight --> C[Error]:::error
  classDef default fill:#f4f4f5,stroke:#a1a1aa
  classDef highlight fill:#fbbf24,stroke:#d97706
  classDef error fill:#ef4444,stroke:#dc2626
Output
Flowchart, Zombie Mermaid Normal Highlighted Error

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