This example visualizes a static tree of seven nodes and six links, offset downward from their original coordinates. It draws curved horizontal links with arrow markers and blue circles for nodes using D3 v5’s `d3.linkHorizontal` generator and SVG path elements. The data comes from a local `data.json` file, and the rendering relies on explicit node positions rather than a layout algorithm. The visualization demonstrates linking a predefined node-link dataset to a custom horizontal edge path with directional arrows.