{
  "added_at": "2026-10-19",
  "additional_evidence_urls": [
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/README.md",
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/docs/VALIDATION.md",
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/THIRD_PARTY_NOTICES.md",
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/.github/workflows/ci.yml",
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/scripts/check_release.py",
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/scripts/renderer.test.cjs",
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/CONTRIBUTING.md",
    "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/LICENSE"
  ],
  "category": "community-case-studies",
  "description_en": "Reimplements the glyph-wind background of the Claude desktop app’s Claude Code New session view as an offline WebGL2 page with a 38-slider control panel. The author reports a static REA investigation of the desktop shell and its remote web bundle, followed by a newly written renderer that reuses recovered timing and layout values. It shares the original’s visual vocabulary and interaction model but is not a pixel-identical extraction.",
  "description_zh": "将 Claude 桌面应用中 Claude Code“新会话”界面的字符风场背景，重新实现为可离线运行的 WebGL2 页面，并附带 38 个滑块的控制面板。作者报告先用 REA 对桌面外壳及其远程网页包进行静态调查，再以新编写的渲染器复用恢复出的时序与布局参数。它与原效果的视觉语言和交互方式相近，但不是逐像素一致的提取。",
  "entry_url": "https://awesomerea.org/resources/claude-code-background-lab-case/",
  "entry_url_zh": "https://awesomerea.org/zh/resources/claude-code-background-lab-case/",
  "evidence_url": "https://github.com/Henry-fan88/claude-code-background/blob/3dbd1065835508be6027137927deeddb8c30fe55/docs/PROVENANCE.md",
  "group": "rea",
  "id": "claude-code-background-lab-case",
  "json_url": "https://awesomerea.org/resources/claude-code-background-lab-case/record.json",
  "kind": "case-study",
  "markdown_url": "https://awesomerea.org/resources/claude-code-background-lab-case/index.md",
  "markdown_url_zh": "https://awesomerea.org/zh/resources/claude-code-background-lab-case/index.md",
  "name": "Claude Code background lab: an REA-informed reimplementation of a desktop animation",
  "name_zh": "Claude Code 背景动画实验室：基于 REA 调查的桌面动画重新实现",
  "record_type": "resource",
  "relationship": "community-reported-mixed-workflow",
  "requirement_facets": [
    "scope",
    "scope",
    "prerequisites",
    "testing",
    "license"
  ],
  "requirements": [
    "The reviewed pin is the repository’s single public commit, dated 16 October 2026. PROVENANCE.md reports that the study targeted Claude desktop 2.37337.1, began with REA’s analyze_javascript_application, traced the shell’s remote page to the background module and stayed static: Claude was not launched or inspected at runtime. It records SHA-256 hashes of the retained ASAR and the decoded module and lists local REA evidence IDs whose archives are not published.",
    "The public edition reuses recovered factual parameters, including 6.5 × 13 CSS-pixel cells, a nominal 9 px font, a 3 s entrance delay and fade-in, a 4 s wind reveal, a 500 ms focus fade-out and 42–64 px/s wind speeds. Its shaders, noise field, random generator, glyph sequences and single-pass instanced rendering are newly written. The author states that an earlier private prototype used extracted source and a bundled font.",
    "Running it needs only a WebGL2 browser opening index.html, or a local static server where the browser restricts local files; there is no Canvas2D fallback, and system monospace fonts change glyph metrics. Development needs Python 3 and Node.js 18+, with no third-party runtime or build dependencies.",
    "CI runs six Node tests of deterministic helpers, rebuilds the offline page, checks that it is current and runs a release check for offline output, syntax, local links and excluded extracted assets and local paths. VALIDATION.md reports manual Chrome-on-macOS checks of rendering and controls, but not a browser-verified settings import, runtime testing of Claude or a pixel comparison with the original. The reference recording’s remote build, seed, theme and font are unknown.",
    "MIT covers the original code and documentation. The repository states that it distributes no recovered Anthropic source, shaders, fonts, ASAR files, screenshots of the original, recordings or account data, and that its license grants no rights in Anthropic’s software, fonts or trademarks. It is unofficial and unaffiliated with Anthropic; REA is credited as the investigation tool rather than bundled, and the author also credits AI-assisted development."
  ],
  "requirements_zh": [
    "所审阅的固定版本是仓库唯一的公开提交，日期为 2026 年 10 月 16 日。PROVENANCE.md 报告该调查针对 Claude 桌面版 2.37337.1，从 REA 的 analyze_javascript_application 开始，沿桌面外壳加载的远程页面追踪到背景模块，且全程为静态分析：未启动 Claude，也未在运行时检查。文档记录了保留的 ASAR 与解码后模块的 SHA-256，并列出本地 REA 证据 ID，但相应的证据归档未公开。",
    "公开版本复用了恢复出的事实性参数，包括 6.5 × 13 CSS 像素的单元格、标称 9 px 字号、3 秒入场延迟与淡入、4 秒风场显现、500 毫秒失焦淡出，以及每秒 42–64 像素的风速。着色器、噪声场、随机数生成器、字符序列和单通道实例化渲染均为新编写。作者说明早期的私有原型曾使用提取的源码与内置字体。",
    "运行时只需用支持 WebGL2 的浏览器打开 index.html；若浏览器限制本地文件，可改用本地静态服务器。项目没有 Canvas2D 回退方案，系统等宽字体也会改变字形度量。开发需要 Python 3 与 Node.js 18+，没有第三方运行时或构建依赖。",
    "CI 运行六项针对确定性辅助函数的 Node 测试，重新构建离线页面并检查其为最新，再执行发布检查，涵盖离线输出、语法、本地链接，以及排除提取素材与本地路径。VALIDATION.md 报告在 macOS 的 Chrome 中手动检查了渲染与控件，但设置导入未经浏览器验证，也未对 Claude 进行运行测试或与原效果逐像素比较。参考录像所用的远程构建、种子、主题与字体均不明确。",
    "MIT 许可覆盖原创代码与文档。仓库声明不分发任何恢复出的 Anthropic 源码、着色器、字体、ASAR 文件、原应用截图、录像或账号数据，其许可也不授予 Anthropic 软件、字体或商标的任何权利。项目为非官方项目，与 Anthropic 无关联；REA 被署名为调查工具而非随附依赖，作者另注明开发过程借助了 AI。"
  ],
  "targets": [
    "app"
  ],
  "url": "https://github.com/Henry-fan88/claude-code-background",
  "verification": "source-reviewed",
  "verified_at": "2026-10-18"
}