This tree map visualizes a hierarchical dataset using D3.js, displaying named nodes connected by curved links from a root node, with each node color-coded and labeled. The visualization uses D3 v2’s `d3.layout.tree` and `d3.svg.diagonal` to compute node positions and draw paths, while circles and text are appended to an SVG canvas. Interactive tooltips appear on mouseover via a styled `div`, revealing each node’s “info” property. The static layout renders with a light background and fixed dimensions of 800 by 300 pixels.