This tree map visualizes ICE arrest quantities across 24 areas of responsibility for Fiscal Year 2024, with each rectangle sized by arrest count and colored on a dark-blue-to-teal scale where darker shades indicate higher totals. The visualization is rendered as an SVG using the D3.js library, specifically leveraging `d3.hierarchy`, `d3.treemap`, and a sequential color scale with a custom interpolator. Hovering over a tile reveals a tooltip with the exact quantities. The data is loaded from a CSV file (`TreeMapDataSet.csv`) containing fiscal year, area, and quantity fields, and the layout sorts the largest arrest areas first for quick comparison.