This example displays a static smiley face constructed with React and rendered as SVG. It uses D3’s `arc` function to generate a mouth shape from a pie-like path, while the face outline and eyes are drawn with `circle` elements. The code sets dimensions, offsets, and radii as constants, and computes the mouth’s arc angles from π/2 to 3π/2. The entire graphic is centered using a `g` transform.