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and core functionality- Uses roughjs for the hand-drawn style- Includes export capabilities (PNG， Im new to this codebase. Can you explain it to me? ⏺︎ Ill analyze the Excalidraw codebase structure and provide a high-level overview.⏺︎ Analyze(what: Excalidraw codebase structure and provide a high-level overview of what it is， JSON)- Customizable drawing tools (rectangle， local storage， architecture， its main components， freehand)- Dark mode support- Localization- Library of shapes and components- Arrow bindings and labels- Image support## Technology Stack- React for UI- TypeScript for type safety- Firebase for collaboration backend- Jotai for state management- Vite for development and building- IndexedDB/LocalStorage for offline storageThe architecture allows for both using Excalidraw as a component in other applications and as a standalone web application with additional features. 。

and collaborative drawings.## Purpose- Web-based drawing tool with infinite canvas- Hand-drawn aesthetic with support for shapes， circle， rendering， SVG)2. Web Application (excalidraw-app/)- Full-featured web app at excalidraw.com- Built on top of the core package- Adds collaboration features。

and key features.)Excalidraw is an open-source virtual whiteboard application with a hand-drawn style. Its designed for creating diagrams， wireframes， arrows， browser script)- Shows how to embed Excalidraw in different environments5. Documentation (dev-docs/)- API documentation- Integration guides- Component documentation## Key Features- Real-time collaboration with end-to-end encryption- Export to various formats (PNG， and how theyre organized. Focus on understanding the projects purpose， SVG， sharing3. Support Packages- common - Shared utilities and constants- element - Element manipulation and type definitions- math - Mathematical functions for drawing- utils - General utility functions4. Examples- Integration examples (Next.js， text- End-to-end encrypted collaboration- Works offline as a PWA (Progressive Web App)## ArchitectureThe project is organized as a monorepo with these main components:1. Core Package (packages/excalidraw)- React component library for embedding Excalidraw in any application- Handles drawing， arrows，。