This example shows a cluster of rotating color wheels built from CSS named colors loaded via d3.csv from a GitHub gist. Each wheel is composed of four concentric rings, rendered as SVG pie arcs using d3.arc and d3.pie, with React components creating the ring structure. The rotation is driven by d3.timer, updating a rotation state that applies different rotation speeds and directions to each ring via transform attributes. Twelve ring components are arranged in a triangular grid around a central point, creating a dynamic, layered visual pattern.