This example shows a yellow smiley face built from layered SVG shapes, with a black-bordered background circle, two eyes, and a curved mouth. The code uses React components to compose the face from separate SVG elements, while D3’s `arc` generator creates the mouth path and a `d3.symbol` adds a small star shape to the face. The visualization demonstrates a modular approach to building reusable chart components with React and D3 in an SVG rendering pipeline.