Stitches: A modern, server-rendered CSS-in-JS library

Stitches is a CSS-in-JS library introduced in 2014 that emphasizes component-based architecture and developer experience, incorporating modern styling trends like server-side rendering and the creation of component variants. It is known for its performance, thanks to avoiding unnecessary prop interpolations at runtime, and offers first-class support for themes and variants, enabling composable component APIs. The library is designed to be framework-agnostic but currently supports React, with Vue support in progress. Developers can define multiple themes using CSS variables and benefit from its atomic output that resolves specificity issues. Stitches features a comprehensive configuration file where users can define custom tokens, breakpoints, and utility functions, enhancing the styling process. Additionally, it provides an intuitive developer experience with its helpful config file, token-aware properties, and breakpoints helper, making it a popular choice for styling components in modern web development.