This example generates an abstract geometric composition inspired by Sol LeWitt, built with vanilla JavaScript and the SVG API. It uses two SVG masks to create a pattern of interlocking diamond shapes from a grid of polygons. Fifty vertical and fifty horizontal rectangles are drawn, each masked to reveal or hide portions of the grid, producing a layered, woven effect. The code demonstrates manual SVG element creation via `document.createElementNS`, with no external libraries.