This example reproduces a Sol LeWitt-style geometric drawing using D3.js, combining SVG rectangles and mask elements to create layered visual patterns. It generates 100 horizontal and vertical striped rectangles, each masked by one of two masks that reveal D3’s built-in symbol shapes—including circles, crosses, diamonds, squares, stars, triangles, and wye—positioned across the canvas. The code uses `d3.range` and `d3.symbol` with `d3.symbols` to render the symbol paths, while `d3.select` handles SVG manipulation and the `mask` attribute applies the clipping patterns. The rendering is fully SVG-based within a full-viewport layout.