This visualization displays a three-level family tree of programming languages, with a single root node branching into four paradigm categories—Object-Oriented, Functional, Scripting, and Systems—which then split into specific languages and their frameworks or variants such as Java, Haskell, Python, and Rust. The graphic uses D3 v7 with the `d3.forceSimulation` layout algorithm to position nodes dynamically, rendering the hierarchical structure as SVG circles and gray linking lines. Nodes are color-coded by tree depth, with a visual legend explaining each level’s hue, and the React-based implementation sets the initial dataset from a flat parent-child array.