What is UnityKit and how can you use it alone?

UnityKit is Unity’s UI framework that provides a set of reusable UI components and a data‑binding system. It allows developers to build interfaces declaratively using C# and Unity’s UI Toolkit. Using UnityKit alone means you can create all UI elements—buttons, sliders, lists—without relying on third‑party libraries. You define UI in a .uxml file, style it with USS, and bind data via C# scripts. UnityKit handles layout, event handling, and state management, making it suitable for building dashboards, in‑game menus, or editor extensions. Because it’s part of the Unity ecosystem, it integrates seamlessly with the editor, supports hot‑reloading, and works across platforms.