This example displays a classic yellow smiley face rendered as scalable vector graphics using React and D3. The face is constructed from multiple SVG shapes, including circles for the head and eyes, and a D3 arc generator for the mouth. The dataset is defined by hardcoded constants for dimensions, positions, and radii. The visualization demonstrates how D3’s `arc` function can create curved paths within a React component, with all elements positioned relative to a center point. The code relies on React 18 and D3 v7.4.4.