SVG Fundamentals
This example demonstrates the fundamental building blocks of SVG rendering by drawing two circles on a 1000-by-1000 canvas. The first circle uses default black fill, while the second circle is styled with a red fill and a thick stroke width of 10. Each shape is defined declaratively in the markup with explicit `cx`, `cy`, and `r` attributes. The visualization illustrates how SVG’s coordinate system and presentation attributes control geometry and appearance without any JavaScript logic, serving as a baseline for more complex data-driven graphics in the VizHub V3 environment.