A smiley face rendered as an SVG graphic, composed of a yellow circle, two dark eye circles, and a curved mouth arc. The face is centered on a 960-by-500 canvas using React components, with D3’s `arc` generator creating the mouth path. Rendering relies on React 16.12 and d3 v5, with all shapes drawn in SVG and positioned via a `translate` transform. Styling includes a black stroke on the head and fixed offsets for the eyes.