{"version":"1.0","type":"rich","title":"Fork of Hello HTML","description":"A circle follows the mouse cursor across an SVG canvas, responding to every movement with a smooth, immediate position update. Built with React and D3 v6, the example uses React's `useState` hook to track mouse coordinates and passes them as `cx` and `cy` attributes to a single SVG `` element. The `onMouseMove` event handler updates the state on each pointer movement, while the viewport is fixed to 960 by 500 pixels with no overflow. This demonstrates a minimal interactive pattern combining React's declarative state management with SVG rendering.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}