Organization Graph Diagram
This visualization shows a network of organizations connected by color-coded links, with nodes sized by hierarchy: main organizations appear largest, child nodes are smaller, and unnamed leaf nodes are the smallest. The code uses `d3.forceSimulation` with `forceManyBody` and `forceLink` to compute positions, while SVG circles, lines, and text render the graph. Links are manually defined in `data.js`, pulling colors from `colors.js`, and users can drag nodes with d3’s `drag` interaction to dynamically reposition the layout.