Need to highlight regions, create annotations, or add geometric shapes to your plots? This guide shows exactly how to draw rectangles in Matplotlib using patches.Rectangle—from crisp outlines to transparent overlays, labels, multiple boxes, subplots, and more. Copy-paste the code and adapt it to your data. Rectangles are ideal for highlighting clusters, marking thresholds/time windows, or… Continue reading Matplotlib Draw Rectangle: Add, Fill, Annotate & Highlight Regions (Step-by-Step)