A yellow smiley face is drawn using SVG, featuring two black eyes and a mouth shaped as an arc. The face is centered within a circle with a thick black stroke, and its dimensions are fixed at 960 by 500 pixels. The visualization uses React for rendering and d3.arc to compute the mouth’s path, with D3 v6 and React 17 loaded via CDN. The code defines geometric constants for eye placement, mouth radius, and stroke width to construct the face programmatically.