This interactive tree chart visualizes tech layoffs by industry, country, and company. It uses D3.js version 3.5.17 to render an SVG with animated expandable nodes. Each node is color-coded by type—cyan circles for industries, aqua rectangles for countries, and yellow squares for companies—with a legend clarifying the shapes. The hierarchical data is embedded directly in the JavaScript. The chart uses CSS for styling and a tan background, while D3 manages the force-directed layout and node interactions.