@primer/css is a collection of CSS utility classes and components developed by GitHub's design system Primer. It provides a set of customizable and reusable styles for building modern and responsive web interfaces. The package includes utility classes for spacing, typography, colors, layout, and more, allowing developers to quickly style their applications without writing custom CSS from scratch.
@stitches/core is a modern CSS-in-JS library that offers a seamless way to style your components using JavaScript. It provides a powerful API for defining styles with a focus on performance and developer experience. Stitches allows you to write CSS directly in your JavaScript code, enabling better encapsulation and reusability of styles. It also supports theming, responsive design, and server-side rendering.
@primer/css is a popular CSS utility library developed by GitHub, which is widely used in many projects. @stitches/core, on the other hand, is a newer library that has gained popularity in recent years but may not have the same level of adoption as @primer/css.
Scope
@primer/css focuses on providing a set of CSS utility classes and components that follow the GitHub design system. It aims to make it easy to style and build UI components. @stitches/core, on the other hand, is a powerful CSS-in-JS library that offers a more comprehensive and flexible styling solution with features like theming, responsive styles, and more.
Integration
@primer/css is designed to be integrated with any framework or library, including React, Vue, and Angular. It can be used as a standalone CSS library or alongside other CSS-in-JS solutions. @stitches/core, on the other hand, is specifically built for React and provides a seamless integration with React components and state management.
Developer Experience
@primer/css has a simple and straightforward API with a large collection of utility classes that can be used out of the box. It provides a consistent and well-documented design system. @stitches/core offers a more powerful and expressive API for styling React components. It leverages the CSS-in-JS approach, providing a more flexible and dynamic styling experience.
Performance
Both @primer/css and @stitches/core aim to generate optimized CSS output. @primer/css uses a utility-first CSS approach to minimize the final output size. @stitches/core utilizes runtime CSS generation to generate minimal and optimized styles based on the used props. Both libraries are performant, but @stitches/core may incur a small runtime overhead due to the dynamic nature of the styling API.
Community and Support
@primer/css is backed by GitHub and has a large community of users, contributors, and ongoing development. It benefits from extensive community support and frequent updates. @stitches/core, while not as widely adopted, has an active and growing community with ongoing development and support.
