{"version":"1.0","type":"rich","title":"Mouse Follower","description":"A single black circle follows the mouse cursor across an empty SVG canvas. The circle's position is updated in real time as the cursor moves, using React's `useState` and `useCallback` hooks to track `clientX` and `clientY` coordinates. The example renders with `ReactDOM.render` and imports `arc` from D3 v5, though the visible output is purely a responsive circle.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/a032946f439f47e9b8daa512e4d1c049?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}