A Sketch UI kit is a collection of libraries (like sticker sheets) that include UI components, UI patterns and even complete screens. The Indigo.Design UI Kits for Sketch takes an “Atomic Design” approach by providing three libraries.
The Styling library has sub-atomic pieces such as colors, shadows, typography styles, and icon glyphs that define the looks of the Atoms and Molecules found in the Components library.
The Component library are collections of atoms that represent full-featured components, like charts, grids, etc.
The Patterns library is a collection of higher-level collections of components like login forms, user profiles, and detail pages.
With Sketch UI kits, a design team can build a consistent, branded digital experiences for any app in the enterprise. With Indigo.Design, the Sketch UI kits are partnered with Angular UI components, enabling a design to code system that can significantly accelerate product delivery.