This renders Mermaid diagrams as SVG or ASCII with 15+ themes like Tokyo Night, Dracula, and GitHub Dark. You get flowcharts, sequence diagrams, state machines, class diagrams, and ER diagrams out of the box. The batch rendering script is handy if you're documenting a whole system and need consistent styling across dozens of diagrams. ASCII output is a nice touch for terminal workflows or plain text docs. It's built on beautiful-mermaid and includes templates for each diagram type, so you're not starting from scratch. The theme comparison workflow is smart: render the same diagram in multiple themes so users can pick what fits their docs. Solid tool if you're generating visual documentation programmatically.
npx skills add https://github.com/imxv/pretty-mermaid-skills --skill pretty-mermaid