Fundamental SVG
This example demonstrates the fundamental structure of a VizHub V3 project, serving as a blank slate "Hello World" for the runtime environment. It shows how a `main` function exported from `index.js` renders HTML into a container element, with a number in the code that supports interactive adjustment via Alt-drag for real-time visual feedback. The visualization displays a simple text message whose font size is controlled by a JavaScript variable, highlighting the platform's hot reloading and widget capabilities without relying on any external libraries or an `index.html` entry point.