This example shows a tree diagram where each node is represented by an image icon instead of a traditional circle or square, with text labels placed beside the icons. The diagram uses hierarchical data with parent-child relationships, and the connecting links are colored according to a `level` property in the data. Built with d3.js v7, it employs `d3.tree()` and `d3.hierarchy()` to compute the layout, then renders SVG paths for the curved links and SVG `<image>` elements for the node icons. Node text positioning automatically adjusts based on whether a node has children.