{"version":"1.0","type":"rich","title":"Mouse follower","description":"A black circle follows the mouse cursor across a 960 by 500 SVG canvas. The circle’s position updates in real time using React’s `useState` and `useCallback` hooks, with the `onMouseMove` event handler tracking client coordinates. The SVG circle is rendered via React, while D3 v6 is loaded but not directly utilized in this interactive mouse-follower example.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/865b27b768ef4d96bdeac42c26f765d3?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}