"Design Should have mattered" is a Chrome extension developed by lassespilling, available for free in the Browsers category under Add-ons & Tools. This program offers simple CSS edits for the Design Matters website, aiming to enhance its visual appeal and user experience. By incorporating these modifications, users can enjoy a more aesthetically pleasing browsing experience on the Design Matters platform.

The "Design Should have mattered" extension provides users with an opportunity to customize the website's appearance, making it more visually engaging and user-friendly. With these enhancements, users can tailor their browsing experience to suit their preferences and enjoy a more aesthetically pleasing interface.