React Native Skia

Skia is a complete 2D graphics library for drawing text, geometries, and images. It is a rendering system that the referenced React Native theme-transition library deliberately avoids.

React Native is an open-source framework for building native applications with React. JavaScript components, declarative UI, hooks, and Suspense are rendered through native platform UI on Android, iOS, and other platforms, while Fast Refresh applies JavaScript changes without rebuilding the native app. Native Modules allow JavaScript code to call platform code directly, and the framework can be adopted incrementally in existing applications or used with production frameworks such as Expo. React Native is developed by companies and individual core contributors and is distributed under the MIT license.

React Native Reanimated is an animation and interaction library created by Software Mansion. Its repository also contains React Native Worklets, which enables multithreaded JavaScript execution in React Native applications. Reanimated and Worklets are distributed under the MIT License; Reanimated 4.x and Worklets support the New React Native architecture and the three latest React Native versions.

React is a JavaScript library for building web and native user interfaces. It uses declarative views that update the appropriate components when application data changes, and lets developers compose encapsulated, state-managing components into larger interfaces. React code can use JSX, an HTML-like syntax for defining interface elements, although JSX is optional. The library is designed for gradual adoption, can render on the server with Node, and supports mobile applications through React Native. Its core repository is developed openly on GitHub under the MIT license.

Quickdraw is an MIT-licensed, open-source infinite-canvas whiteboard SDK for React, React Native/Expo, and plain JavaScript applications. It provides freehand pressure ink, highlighters, shapes, arrows, lines, text, sticky notes, images, selection and transformation tools, laser presentation pointers, themes, grids, palm rejection, and PNG export. Its data model emits JSON-safe diffs for real-time synchronization over an application-chosen transport, with support for persistence, undo/redo, and stroke-by-stroke replay. The project provides separate core, React, and React Native packages; the core is plain ESM with zero runtime dependencies and can run in modern browsers without a build step. The repository states that it is free for commercial use and has no license fee.