This visualization displays a treemap of companies grouped by industry, with each cell sized by relative score and color-coded to show either relationship scores or percentage net change. The treemap is built using `d3.treemap` and `d3.hierarchy` with hierarchical data parsed from a JSON source. Cells contain clipped text labels, and a React interface toggles between the two color scales (`d3.scaleLinear`). The SVG rendering uses React with D3 v7 and updates colors via a `useEffect` hook.