This is a diagram design skill built for AI coding assistants that generates HTML+SVG files you can open directly in the browser. It supports 45 diagram types, including architecture diagrams, flowcharts, sequence diagrams, Gantt charts, and Sankey diagrams. It can automatically extract brand colors and fonts from websites, redraw existing diagrams from Mermaid, draw.io, and Excalidraw in a consistent style, and export them as PNG or SVG.