This visualization reproduces a Sol LeWitt art piece using D3.js, displaying a grid of vertical and horizontal striped rectangles overlaid with masked geometric symbols. The code employs D3 selections and data joins to generate 100 rectangles in each direction, while `d3.symbol` and `d3.symbols` create the diamond and triangle shapes used in the masks. Two SVG masks, defined via the `renderMask` function, apply the symbols as cutouts in alternating black-and-white fills, revealing the striped pattern through the shapes. The rendering uses SVG with dynamic window dimensions, and the masks are applied with inverted fill states to create the final layered composition.