This zoomable sunburst visualization displays hierarchical data from the Flare dataset, with concentric rings representing nested categories such as analytics, animate, and query. The visualization uses D3 v5's partition layout to render the sunburst as SVG, with each sector's arc length proportional to its value. Users can click on any arc to zoom in and explore that branch of the hierarchy, with the root label and title updating to reflect the current focus. The code implements this interactivity using D3's `d3.partition`, `d3.hierarchy`, and event handling on the SVG elements.