This example shows a classic smiley face rendered as an SVG graphic, centered on a 960×500 canvas. The face consists of a yellow circle with a black stroke, two eyes, and an arc-shaped mouth. The visualization is built using React to manage the SVG elements, while D3’s `arc` function generates the mouth’s path data by specifying inner and outer radii and angular start and end points. All shapes are declared declaratively within the React component and rendered via `ReactDom.render`.