This example uses React and D3 to render a stylized smiley face composed of SVG shapes. It shows a yellow circle with a black outline, two offset eyes formed by a circle and a rectangle, and a mouth drawn as an arc path. The D3 `arc` generator defines the mouth’s inner and outer radii and angular range, while SVG paths and React JSX manage the other facial features. The fixed canvas dimensions and hardcoded coordinates determine the face’s composition.