This example reproduces a Sol LeWitt art piece using D3 v6. It displays a grid of vertical and horizontal striped rectangles overlaid with two circular masks, creating intersecting line patterns. The visualization uses `d3.select`, `d3.range`, and the `join` pattern to generate 100 SVG rectangle elements in each direction. Two SVG masks, each containing a black or white circle, selectively reveal or hide portions of the stripes, producing the geometric contrast characteristic of LeWitt’s work. The SVG fills the entire browser window.