Face SGV is a React-based smiley face visualization that renders a classic emoji-style face using SVG primitives. The graphic shows a yellow circle with a black stroke, two black eyes, and a curved mouth, all centered within a fixed 960×500 viewport. The code leverages React 16.9 for component rendering and D3 v5’s `arc` generator to define the mouth path, while static `circle` elements handle the face and eyes. All shapes are positioned relative to a central transform, with dimensions and offsets (like `eyeOffsetX` and `mouthRadius`) hardcoded as constants. No external data is involved; the visualization is purely programmatic, relying on SVG’s declarative model.