Smiley face
A large yellow circle with a thick black outline forms the face, accompanied by two smaller black circles positioned as eyes. The visualization demonstrates fundamental SVG shape rendering using the `circle` element with explicit `cx`, `cy`, and `r` attributes. The face is centered within an SVG canvas of 960 by 500 pixels, with the eyes offset horizontally from the center. The rendering approach is static SVG markup, with no interactive or animated behavior present.