Feishu & Lark Color Favicons

Privacy Policy
隐私权政策

Clear disclosure for a local-first extension that restores distinguishable favicons for supported Feishu, Lark, and Doubao pages and optionally colors supported Feishu and Lark sidebar icons.

Effective: August 11, 2026 生效日期：2026 年 8 月 11 日

English

The extension processes limited web browsing activity, website content, and user-provided icon data locally to identify supported Feishu, Lark, and Doubao page types, manage favicon preferences, and optionally color supported Feishu and Lark sidebar icons. The developer does not receive this information.

1. Scope and single purpose

Feishu & Lark Color Favicons has one purpose: make supported document types easier to distinguish. It identifies Docs, Sheets, Slides, and Wiki-hosted page types on supported Feishu and Lark websites, as well as supported document pages on www.doubao.com, then displays a clear favicon chosen by the user. It can also color supported Feishu and Lark sidebar icons using the configured colors. It does not provide analytics, advertising, document editing, or developer-operated cloud services.

2. Information processed

  • Web browsing activity: the current URL route and page identifier on supported Feishu, Lark, and Doubao domains are processed locally to determine the page type. For a manual per-page override, the extension stores a hash derived locally from the hostname, route, and route token. It does not store the raw URL or route token.
  • Website content: the extension may inspect existing favicon references, relevant metadata and type attributes, limited in-page state associated with the current Wiki identifier, custom-title-icon markers, and supported sidebar icon markers. This information is used only to distinguish Docs, Sheets, and Slides, preserve title custom icons, update the favicon, and color supported Feishu and Lark sidebar icons. These page signals are not written to persistent storage or transmitted. The extension does not intentionally read or retain document body text.
  • User-provided icons: when a user chooses a local image, it is rasterized inside the browser to a 128 × 128 PNG and stored locally for use as a favicon. When applied, its data URL is assigned to the favicon element in the current supported page's DOM and may be observable to that page. It is not copied to sidebar icons or sent to the developer.

3. Storage

  • chrome.storage.sync stores the settings schema version, global enabled state, sidebar enabled state, and selected Doc, Sheet, and Slides colors. Chrome may synchronize these preferences between the user's signed-in browsers when Chrome Sync is enabled.
  • chrome.storage.local stores user-provided Doc, Sheet, and Slides icon data and per-page type overrides keyed by locally derived hashes on the current device. It does not store raw URLs or route tokens.

No developer-operated service receives data from either storage area.

4. Transmission, sharing, and sale

The extension makes no requests to a developer-operated service and sends no document content, URLs, route tokens, uploaded icons, settings, or telemetry to the developer. It contains no analytics or advertising SDK. The developer does not sell, rent, receive, or disclose this data to third parties. If the user enables Chrome Sync, the settings stored in chrome.storage.sync may be synchronized by Chrome or Google under the user's Chrome and Google account settings. Locally stored icons and per-page overrides are not included in that sync. To display a user-provided favicon, its locally stored data URL is assigned to the current supported page's favicon DOM element as described above; the extension does not otherwise transfer it.

5. Use and Limited Use compliance

Information is processed only to provide the extension's disclosed favicon identification and customization features and supported Feishu and Lark sidebar coloring. The use of information received from Chrome APIs adheres to the Chrome Web Store User Data Policy, including the Limited Use requirements. It is never used for advertising, profiling, creditworthiness, or lending purposes.

6. Retention and user control

Users can restore default colors, remove custom icons, pause the extension, independently disable sidebar coloring, or return an individual page override to Automatic from the extension UI. Local data is retained until the user changes it, clears the extension's storage, or uninstalls the extension. Synced preferences are governed by Chrome Sync's retention controls.

7. Security and data minimization

All executable code is included in the extension package. The extension does not load remote JavaScript or WebAssembly. Host access is limited to *.feishu.cn, *.larkoffice.com, *.larksuite.com, and www.doubao.com. Processing is limited to information required for the disclosed favicon and sidebar features.

8. Changes to this policy

Material changes will be published on this page with a revised effective date.

9. Contact

Questions or privacy requests may be submitted through GitHub Issues.

简体中文

本扩展仅在本机处理有限的网络记录、网站内容和用户提供的图标数据，用于识别受支持的 飞书、Lark 与豆包页面类型、管理标签页图标偏好，并可选为飞书 / Lark 的受支持侧栏 图标着色；开发者不会收到这些信息。

1. 适用范围与单一用途

飞书 / Lark 彩色标签页图标只有一个用途：让受支持的文档类型更容易区分。本扩展会在 受支持的飞书和 Lark 网站上识别文档、电子表格、幻灯片及其 Wiki 承载类型，也会识别 www.doubao.com 上受支持的文档页面，并显示用户选择的清晰标签页图标； 还可使用配置的颜色为飞书 / Lark 的受支持侧栏图标着色。本扩展不提供分析、广告、 文档编辑或由开发者运营的云端服务。

2. 处理的信息

  • 网络记录（Web browsing activity）：扩展会在受支持的飞书、Lark 与 豆包域名上，在本机处理当前 URL 路由和页面标识，以判断页面类型。用户为单个页面设置 手动覆盖时，扩展仅保存由 hostname、路由和路由 token 在本机生成的哈希值，不保存 原始 URL 或路由 token。
  • 网站内容：扩展可能检查页面现有 favicon 引用、相关元数据和类型属性， 与当前 Wiki 标识相关的有限页面状态、标题自定义图标标记及受支持的侧栏图标标记。 这些信息仅用于区分文档、电子表格和幻灯片，保留标题自定义图标，更新 favicon， 以及为飞书 / Lark 的受支持侧栏图标着色；不会写入持久化存储，也不会传输。 扩展不会有意读取或保存文档正文。
  • 用户提供的图标：用户选择本地图片后，图片仅在浏览器中缩放， 栅格化为 128 × 128 PNG，并保存在本机供 favicon 使用。应用图标时，其 data URL 会写入 当前受支持页面的 favicon DOM 元素，因此该页面可能读取此元素；图标不会复制到侧栏， 也不会发送给开发者。

3. 存储方式

  • chrome.storage.sync 保存设置结构版本、扩展总开关、侧栏开关，以及文档、 电子表格和幻灯片的颜色。用户开启 Chrome 同步时，Chrome 可能会在用户已登录的浏览器 之间同步这些偏好。
  • chrome.storage.local 在当前设备保存用户提供的文档、电子表格和幻灯片图标 数据，以及以本机派生哈希为键的单页类型覆盖；不保存原始 URL 或路由 token。

任何由开发者运营的服务都不会接收上述两类存储中的数据。

4. 传输、共享与出售

本扩展不会向开发者运营的服务发起请求，也不会把文档内容、URL、路由 token、上传的 图标、设置或遥测信息发送给开发者；扩展不包含分析或广告 SDK。开发者不会出售、出租、 接收这些数据，也不会向第三方披露。如果用户开启 Chrome 同步，保存在 chrome.storage.sync 中的设置可能由 Chrome 或 Google 根据用户的 Chrome 与 Google 账号设置进行同步；本地图标和单页覆盖不会参与该同步。 为显示用户提供的 favicon，其本地 data URL 会按上述方式写入当前受支持页面的 favicon DOM 元素；除此之外，扩展不会传输该图标。

5. 使用范围与 Limited Use 合规

相关信息只用于本扩展已披露的页面类型识别、favicon 自定义功能，以及飞书 / Lark 受支持侧栏的图标着色。通过 Chrome API 获得的信息将遵守 Chrome 应用商店用户数据政策， 包括 Limited Use 要求；绝不会用于广告、画像、信用评估或贷款用途。

6. 保留与用户控制

用户可以在扩展界面恢复默认颜色、移除自定义图标、暂停扩展、单独关闭侧栏着色， 或把单页覆盖恢复为“自动”。本地数据会保留至用户修改、清除扩展存储或卸载扩展； 已同步偏好的保留由 Chrome 同步机制控制。

7. 安全与最小化处理

所有可执行代码均包含在扩展安装包内，不加载远程 JavaScript 或 WebAssembly。 主机访问范围仅限 *.feishu.cn、*.larkoffice.com、 *.larksuite.com 与 www.doubao.com，并将处理范围限制在已披露的 favicon 与侧栏功能所必需的信息。

8. 政策变更

如发生重大变更，本页面将公布更新后的内容和生效日期。

9. 联系方式

如有隐私相关问题或请求，请通过 GitHub Issues 联系。