JS UI framework | JS UI开发框架
Storing declaration files for JavaScript APIs | JavaScript API 公共仓，存放 d.ts 声明文件
Provides syntax compilation and conversion of declarative paradigms, syntax verification, and rich and friendly syntax error prompt capabilities. | 提供声明式范式的语法编译转换，语法验证，丰富友好的语法报错提示能力。
Providing system resources such as fonts | 字体等系统资源
Development self-test framework | 开发者自测试框架
Launcher system app | 系统桌面
