A 10x10 grid of square cells responds to clicks by cycling through four fill colors: white, blue, orange, and gray, based on a per-cell click counter. The SVG is generated with D3 v4, using data binding to create rows and columns of `rect` elements. Each cell maintains its own click state, and the `d3.select(this)` method directly updates the clicked square’s style. The grid itself is static, with no animation or external data source beyond the locally generated coordinate and dimension objects.