Smiley Face
A yellow circle with a black outline forms the face, containing two white eyes with black pupils, a simple nose made of two connected lines, and a curved smile drawn with a D3 arc path. The SVG is built with React components, using d3.arc to compute the mouth’s path with specified inner and outer radii and angles. All shapes are positioned relative to a centered transform, with fixed dimensions and stroke widths defining the minimalist cartoon style.