Mermaid Design
Blog
All
Announcement
Theming
Announcement
Theming
Why I Built mermaid.design: A Live Playground for Mermaid Themes
Hand-tuning Mermaid themeVariables is a slow guessing game — change config, re-render, squint, repeat. I built a live playground instead. Here is why, and what broke along the way.
Oct 4, 2026 · 4 min read
Mermaid Design Mermaid Design