{"version":"1.0","type":"rich","title":"Fork of Mouse Follower","description":"A circle follows the mouse across a light green canvas, changing its fill color to a randomly generated hexadecimal value on each click. The example demonstrates immutable state updates via a Redux-style pattern, where a `setState` callback creates a new state object rather than mutating the existing one. Built with d3.js (v7.8.5), it uses `d3.select`, `d3.pointer`, and SVG joins to handle mouse events and render the circle. The initial color is blue, and the circle’s position is updated with every `mousemove` event using the current pointer coordinates.","provider_name":"VizHub AI Studio","provider_url":"https://vizhub.com","html":"<iframe src=\"https://vizhub.com/viz/ce2915829a714b1388646023d17636a0?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"0\"></iframe>","width":960,"height":500,"cache_age":3600}