A black smiley face drawn with SVG circles and a D3 arc path, featuring red stroke outlines, gold and lime eyes, and a blue semicircular mouth. Built with React 17 and D3 v7, the component uses the `arc` generator from `d3` to construct the mouth’s path, while circles define the head and eyes. The face is centered via a transformed `<g>` group, with dimensions fixed at 960 by 500 pixels.