This visualization generates a grid of overlapping horizontal and vertical stripes, each masked by a row of D3 symbol shapes. Using D3 v7 APIs including `select`, `range`, and `symbol`, it renders SVG rectangles and paths. Two masks—one normal and one inverted—control which stripe segments remain visible, creating a checkerboard-like interplay of geometric forms inspired by Sol LeWitt’s wall drawings. The code uses `join` for enter selection and derives symbol paths from D3’s built-in symbol types.