This visualization generates a geometric composition using D3.js SVG rendering. Black triangles fan outward from a central white rotated square symbol, created by masking a black rectangle with a diamond-shaped cutout using `d3.symbol` and `d3.mask`. The triangles are computed programmatically via `linspace` and polygon points, forming symmetric radial patterns around the center. The result is a stark, mask-based interplay of light and dark shapes.