This example shows a smiley face composed of SVG elements—a yellow circle, two eyes, and a curved mouth—centered on a 960×500 canvas. The visualization is built with React components split across separate files, using ES6 modules and React Fragments to group the eye elements. The mouth shape is generated with the d3.arc() API, which derives a path from specified inner and outer radii and start and end angles. All elements are positioned and scaled through React props, then rendered as SVG within the DOM.