Draw a watercolor-style Mermaid flowchart:

• Rendering uses vello, so you need a browser with WebGPU compute shader support. See Lesson 35 - Tile-based Rendering.
• mermaid-to-excalidraw parses Mermaid flowchart syntax. See Lesson 32 - Text to diagram.
• Watercolor-style fills use watercolorizer.
• The font is Gaegu.