A square smiley face is drawn as an SVG graphic, centered on a yellow circle with black stroke, two black eyes, and an arc-shaped mouth. The design deliberately flattens the classic smiley by using a square canvas dimensions of 960 by 960 pixels. Built with React and D3 v7, the code uses the `d3.arc()` API to generate the mouth path, while React components render the circles and path. Coordinates for the eyes and mouth are fixed constants, creating a static, minimal composition without animation or interaction.