WOAH, OPACITY! A FULL GUIDE TO THIS BADASS HERO OF EFFICIENT UI DESIGN

Summary from the TLDR Design newsletter

Transparent colors streamline design by adapting to different backgrounds, reducing the need for multiple styles and states. This approach simplifies buttons, borders, and theme adaptability, benefiting startups and fast-paced teams. Although transparency improves efficiency, accessibility and performance considerations are essential for optimal user experience across devices and backgrounds.