Test
This example visualizes a hierarchical dependency tree for a test component, showing where it is referenced and what it uses, organized by type such as Layout, CustomField, and ApexClass. The graph is rendered as an SVG using D3.js v7, with `d3.hierarchy` and `d3.tree` computing the layout. Nodes are drawn as colored rectangles with `foreignObject` elements to display HTML labels, while edges connect parent and child nodes. The data is structured from a static JSON input, and the layout dimensions are calculated based on the tree depth.