This example renders a smiling face as a static SVG graphic. It draws a yellow circle for the head, two eyes, eyebrows, and a mouth using D3's `select`, `append`, and `arc` APIs. The `d3.arc` function generates the mouth path, while SVG `circle` and `rect` elements form the other facial features. The chart is centered using SVG transforms, with a tomato-colored background applied via CSS.