Markdown documents (POST /api/v1/md, the CLI, the blog) keep gaining Mermaid
diagram types, each rendered as native PDF vector graphics — sharp at any zoom:
- Timeline — chronological lanes of time periods with stacked event cards, optional section bands, and a cycled colour palette. Ideal for roadmaps, project histories, and release recaps.
- Quadrant chart — a 2×2 matrix split by midlines into four tinted cells with quadrant labels and named points plotted in unit-square coordinates. Common in effort/impact and risk/reward prioritisation decks.
- Sankey diagram (
sankey-beta) — weighted flow diagrams that show how quantities move between nodes across layers. Ideal for budget breakdowns, energy flows, and resource allocation: each ribbon's thickness is proportional to the flow value, and nodes are automatically layered by longest-path depth.