This example demonstrates how basic SVG shapes are used to compose a static vector graphic. It displays a circle, a yellow rectangle with a navy border, a diagonal line, and a black path forming an angular polyline. The rendering uses inline SVG elements within an HTML page, with explicit attributes for coordinates, dimensions, fill colors, stroke colors, and stroke widths. No JavaScript libraries or data sources are involved; the visualization is defined entirely through declarative SVG markup in the `index.html` file.