This example displays a yellow smiley face constructed with SVG shapes, including eyes, a mouth arc, and an angled eyebrow line. The rendering uses React to manage the SVG elements, with D3 v6 calculations via `arc()` for the mouth path and `line()` for the eyebrow. The face is centered on a 960×500 canvas, with positions derived from fixed offsets and radius values. The code demonstrates a static, programmatic composition of a facial illustration, combining D3 geometry helpers within a React component tree.