This example reproduces Sol LeWitt’s looping wall drawing using D3 v6 and React. It renders 100 horizontal and 100 vertical SVG rectangles across the full browser window, each masked by a set of geometric symbols from the `symbols` array. The code uses D3’s `select`, `range`, and `symbol` APIs to generate the grid and apply two inverted masks, creating a layered, monochrome composition with alternating visual density.