Fork of D3 Transitions
This example demonstrates D3.js transitions animating the sizes of circles. A set of 14 colored circles appears and grows into place with a staggered delay, while rapid linear easing updates their positions and colors. Built with the v3 `d3.select` and `transition` API, it uses `transition().duration()` and `.delay()` to orchestrate the entrance, and a faster transition with `easeLinear` for updates. The visualization runs on an animated SVG canvas, with circle colors assigned from a static array.