leaferjs/leafer-ui: README-based editorial guide

leaferjs/leafer-ui describes itself in the README as "好用的 Canvas 引擎，轻松实现图形交互与编辑，AI 时代的无限画布引擎。An easy-to-use Canvas engine for effortless graphic interaction and editing , an infinite canvas engine for the AI era.". This article keeps to facts that can be checked in the repository. Stars, forks, and promotional badges are signals of attention, not proof of quality. Under "LeaferJS：好用的 Canvas 引擎", the README says: 👉 在浏览器里 "跑得动 100 万个图形" 的 Canvas 引擎 👉 可以做 "Figma 级编辑器" 的 Canvas 内核. That establishes the project's stated boundary, not a production test.

The README's "🏗️ 为什么是 AI 时代的无限画布引擎？" section gives a useful starting point for deciding whether the project fits: 🤖 语义化编辑： 结构化场景树让 AI 能像操作 DOM 一样操控图形，构建真正的 AI 协同工作流。. If that problem is not yours, popularity is a poor reason to adopt it. Project names, commands, and component names are kept as written so a reader can return to the primary source without guessing at terminology. Another checkable README item is: ⚡ 极致承载力： 突破极限，百万交互图层依然保持丝滑响应，完美承载 AI 生成的海量碎片。. It can shape a first test, but it does not replace testing in the intended environment.

The operating model is spread across sections such as "🏗️ 为什么是 AI 时代的无限画布引擎？". The source evidence includes: 在 AI 生成内容爆发的今天，图形引擎的挑战已从 "如何画出来" 转变为 "如何编排与精修"：. This article does not turn missing architecture, performance, or security details into claims. A real deployment still needs a look at the repository layout, configuration files, and release history.

Start installation from the README's documented entry point. A command that can be checked in the source is: npm install leafer-ui # 需使用插件时，推荐同时安装跨平台核心包，防止出现更新版本不同步问题 npm install leafer-ui @leafer-ui/core @leafer-ui/draw When the README contains no runnable command, this article does not invent one. Open its "🧐 为什么选择LeaferJS？" section and confirm system dependencies, default ports, and first-run initialization before using a public server.