Sepialune - Dark Mode & Sepia

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This English version is a convenience translation. The German version is legally binding.

Controller

Zerbimil UG (haftungsbeschränkt)
Leopoldstraße 71
66578 Schiffweiler
Germany
Email: [email protected]

Further details in the legal notice.

Summary

Sepialune collects no data. It has no analytics, makes no network requests and contains no third-party code.

Your settings (your choices in the popup, for all sites and for the sites you chose something for) are stored only in your browser's local extension storage and never leave your device. Reset all settings in the popup deletes them; uninstalling Sepialune does too.

Sepialune asks for access to all websites only so it can change their colors. To decide how, it looks at the colors, layout and text color of the pages you open, on your device. It never stores or sends anything it sees there.

What pages can see: pages can tell that Sepialune is installed, as they can with most extensions that change how pages look, by the attributes it sets on the page (data-sepialune), its styles, and the small wrapper it puts around attachShadow to see web components early. A page can also tell the mode Sepialune applied to it, and with that its own site's switch and color. A frame from another site shown inside a page, like an embedded video or comment box, can tell the mode Sepialune applied there, which follows the settings of the page it is shown on. So a service embedded on many sites could learn which of them you switched off or gave another color. Pages can't read your settings otherwise, or learn the settings of sites they aren't shown on.

Email and website

Email inquiries and this website are covered by the Zerbimil privacy policy.

Rights

Subject to the statutory requirements, data subjects have the right of access, rectification, erasure, restriction of processing, data portability and objection. A message to the address above is sufficient. Sepialune's settings are held only in the browser on the device. Zerbimil can neither see nor delete them.

Right to lodge a complaint

Complaints can be lodged with a data protection supervisory authority. The competent authority is, in particular:

Unabhängiges Datenschutzzentrum Saarland (Independent Data Protection Center Saarland)
Fritz-Dobisch-Straße 12
66111 Saarbrücken, Germany
[email protected]
www.datenschutz.saarland.de

Last updated

November 1, 2026