This visualization reproduces a Sol LeWITT-style geometric composition using overlapping black grid lines. Horizontal and vertical stripes are drawn across the full screen, with two masks applied to reveal a diamond shape at the center. The inner mask cuts out the diamond from the horizontal lines, while the outer mask obscures the vertical lines outside that shape. Built with d3-selection, d3-range, and d3-symbol, the SVG rendering uses 100 rects per axis and a centered path symbol to define the mask regions.