# Privacy Policy — Klartext Physiologie

_Last updated: 2026-07-11_

**Klartext Physiologie** is a browser extension that restyles pages on
`physiologie.cc` and adds local study tools (highlighting, margin notes,
figure pinning, appearance settings).

## What data the extension stores

The extension stores the following **locally on your device**, using the
browser's extension storage (`chrome.storage.local`) and, as a small boot
cache, the page's own `localStorage`:

- **Your appearance settings** (font, size, line height, text width, colour,
  background theme, image and motion preferences).
- **Your annotations per page**: the highlights and margin notes you create,
  and which figures you have pinned. These are keyed by the page's path on
  `physiologie.cc`.
- **A single on/off flag** for whether the reskin is active.

## What the extension does **not** do

- It does **not** collect, transmit, or sell any personal data.
- It does **not** send anything to the developer or to any third-party server.
- It does **not** use analytics, tracking, cookies, or advertising.
- It does **not** read or modify any site other than `physiologie.cc`
  (and `www.physiologie.cc`).
- It makes **no network requests**. Fonts are bundled with the extension and
  loaded locally; the only images shown are the ones already on the page you
  are viewing.

## Your control over the data

Everything is stored only on your device. You can remove it at any time by:

- deleting a highlight, note, or pin from within the tools, or
- removing the extension, which deletes all of its stored data, or
- clearing the browser's site data for the extension.

## Permissions

- **`storage`** — to save your settings and annotations locally, as described
  above.
- **Host access to `http://physiologie.cc/*`** — so the content script can
  restyle those pages. The extension runs on no other sites.

## Contact

Questions about this policy can be raised via the extension's listing page.