Credits

Built on the shoulders of very good work.

Built on

Sunny Reader is a fork of Reader View by @rNeomy (MPL 2.0). The service worker, content injection, options page, and reader scaffolding descend from that codebase—Sunny themes, sticky notes, the library, highlights, dictionary, and the rest were added on top.

The extension also bundles the following open-source components—their full license texts ship with the extension as THIRD_PARTY_LICENSES.md.

Libraries

• Readability.jsApache 2.0—© 2010 Arc90 Inc. / Mozilla. The core article-extraction engine used by Firefox's reader mode.
• DOMPurifyApache 2.0 / MPL 2.0 dual—© Cure53. Sanitizes HTML from imported reading-history JSON at the moment it's read.

Fonts

All under the SIL Open Font License 1.1.

• InterRasmus Andersson. UI type across the extension and this site.
• Source Serif 4Frank Grießhammer / Adobe. Default serif for body text in the reader.
• PoppinsIndian Type Foundry. Rounded geometric option.
• Lexend DecaBonnie Shaver-Troup & Thomas Jockin. Accessibility-focused sans.
• Comic NeueCraig Rozynski. The note-friendly casual hand.

If you enjoy this, please consider supporting the maintainers of the libraries above and the upstream extension—they do the hard part.