A pseudo bar chart displays four black rectangles of varying heights and widths on a white background, suggesting categorical data through simple geometric shapes. The example demonstrates foundational SVG rendering with raw `rect` elements and explicit width, height, and fill attributes, all defined directly in the HTML markup. Built with React, the code uses no external visualization libraries, relying instead on static SVG coordinates to create a clean, minimalist chart. The layout follows a fixed 1512-by-982 pixel canvas, illustrating how basic shapes can communicate quantitative comparisons.