Design systems

Existing Open source systems

They usually include UI kits for designer apps, like Figma, and provide UI libraries for development. Design systems are not just a bunch of components, but a package of spacing, color palette, theming, typography, iconography guidelines that together provide a consistent visual experience to the user, if applied correctly.

• Google's Material https://m3.material.io/
• Microsoft's Fluent https://fluent2.microsoft.design/
• IBM's Carbon https://carbondesignsystem.com/

You can find other on the https://designsystemsrepo.com/