This fork of a network graph visualizes a hierarchical node-link structure on a dark canvas. It uses the `d3` library's deterministic simulation toolkit, specifically `d3.forceSimulation` with `d3.forceManyBody`, `d3.forceLink`, and `d3.forceCollide`, to position nodes. The example reads node data from a CSV file and employs Canvas rendering for the visualization. Nodes are color-coded and sized according to their position in the hierarchy, with the root and key nodes highlighted in distinct colors.