{"version":"1.0","type":"rich","title":"Mouse Follower","description":"A yellow circle with a black outline follows the mouse cursor across an SVG canvas. The React component tracks pointer movement via an `onMouseMove` event handler, storing coordinates in state with `useState` and updating them through `useCallback`. D3 v7 is included but not directly used for the interaction; React 18 handles rendering and state updates. The initial circle position is centered within the 900×560 viewport before the cursor enters the SVG area.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}