什么是 UI Kit？

UI Kit is a ready-to-use, customizable set of UI components, typography, colors, variables, and styles that can be used directly in design tool like Figma. A UI Kit typically includes everything from buttons and forms to modals, navigation menus, and other complex components and patterns. These kits are designed to ensure visual consistency among all components and meet the requirements of the Design System. By providing pre-built components, a UI Kit accelerates the design process, allowing for quick prototyping and maintaining visual consistency across different parts of the product.

On the other hand, a UI Kit is much more than a set of pre-made elements; it's a reflection of thoughtful design decisions made to address both user needs and brand goals. It translates abstract design principles into touchable, reusable components, ensuring a consistent and cohesive user experience.

Key concepts explained

A UI Kit is like a big box of building blocks, where each block is a piece you need to create different things. Imagine you have a box filled with different shapes and colors of blocks—some are rectangles, some are circles, and some are triangles. These blocks are like the buttons, forms, and menus you see on a website or app.

When you want to build something with your blocks, you don’t have to start from scratch. You can pick up the blocks you need and fit them together, knowing they’re all designed to work well together. Similarly, a UI Kit offers designers a collection of pre-built components, such as buttons, text styles, and color schemes, that can be used to create a user interface efficiently.

How to use UI Kit?

For example, Apple provides a comprehensive UI Kit for its Human Interface Guidelines. This UI Kit includes all essential UI elements, such as buttons, sliders, switches, and navigation bars, which are designed to conform to Apple's iOS and macOS design standards. It also features predefined styles for typography, color palettes, and other UI components that align with Apple's brand identity. Designers using this kit can quickly prototype apps that are visually consistent with Apple's ecosystem.

Quite a few tech companies make their UI Kits in Figma publicly available, you can see them on this page.