This visualization uses D3 4.0’s improved pack layout to render a hierarchical circle packing diagram of the flare.json dataset, displayed on a 960×960 canvas. Each node is represented by a circle whose size corresponds to its value, with parent nodes containing child nodes. The layout computes the smallest enclosing circle for each node, resulting in a tighter, more compact arrangement than earlier implementations. The visualization is rendered entirely with canvas and appears as a network of nested circles—an "offensive" clustering of many small bubbles grouped into larger categories by color.