SVG Fundamentals
This example illustrates fundamental SVG rendering on a bare HTML page, using inline SVG elements to draw a circle and a more complex multi-path vector icon. The icon is composed of several `<path>` elements with distinct stroke colors and opacities, displayed within a nested `<svg>` that uses a `viewBox` coordinate system. The rendering approach is purely declarative, relying on standard SVG geometry and styling attributes rather than JavaScript or a visualization library. It demonstrates nested SVG structures, path data for custom shapes, and CSS-less styling via presentation attributes.