JSON Canvas Visualizer

Quick Start: Define nodes with id, type, x, y, width, height → Plan layout on 100px grid → Connect edges with fromNode/toNode → Apply colors (1-6) → Wrap in ```canvas fence. Origin (0,0) at top-left, X right, Y down. Obsidian Canvas compatible.

Critical Syntax Rules

1. Structure Format

{
  "nodes": [
    {"id": "n1", "type": "text", "text": "Node 1", "x": 0, "y": 0, "width": 120, "height": 50}
  ],
  "edges": []
}