A grid of colored squares displays companies, each labeled with its ticker symbol and a numeric "rel_score." A red-to-green linear scale maps these scores, and hovering over a square reveals company details like name, industry, and description in a tooltip and a fixed info panel. The visualization is built with d3.v7, using `scaleLinear` for color mapping, `.join()` for SVG element creation, and mouse event handlers for interactivity. Data comes from a JSON file hosted on a GitHub gist.