This interactive sunburst chart visualizes the hierarchical structure of the Flare dataset, showing file sizes as angular arc lengths. Users navigate the hierarchy by clicking on any segment, which re-centers the visualization on that node's subtree. The implementation is built with D3 v5, using the `d3.arc` generator and `d3.partition` layout to compute segment geometry. Colors are assigned via `d3.scaleOrdinal` with a rainbow interpolation. Clicking triggers a smooth 750-millisecond transition, with `attrTween` and `d3.interpolate` animating the arcs and labels, while the view resets when clicking the innermost circle.