{"version":"1.0","type":"rich","title":"Mouse Follower","description":"A black circle follows the mouse as it moves across a blank SVG canvas. The example demonstrates React state management with the `useState` and `useCallback` hooks to track cursor coordinates. Each mouse movement updates the circle’s `cx` and `cy` attributes, while d3.v5 is loaded but not used in the visible logic. The SVG rendering is handled by React, with the circle’s position initialized at the canvas center.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"","width":960,"height":500,"cache_age":3600}