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Privacy Policy
Last updated: March 26, 2026
Summary
BacktraceDesign does not collect, store, or transmit any personal data. The extension runs entirely in your browser.
What the extension does
When you right-click a webpage and select "Extract styles from this page", BacktraceDesign:
- Reads the CSS styles, custom properties, and computed styles of elements on the current page
- Captures a screenshot of the visible tab for display in the style book header
- Stores the extracted style data temporarily in
chrome.storage.session (browser session storage that is cleared when the browser is closed)
- Opens a new tab to display the generated style book
Data collection
BacktraceDesign collects no personal data. Specifically:
- No personally identifiable information
- No browsing history or web activity
- No cookies or tracking identifiers
- No analytics or telemetry
- No data is sent to any server or third party
Data storage
The only data stored is the extracted style information (colors, fonts, spacing values, etc.) from the page you chose to analyze. This is stored in chrome.storage.session, which is:
- Local to your browser only
- Automatically cleared when the browser session ends
- Never synced to any cloud service
Permissions
The extension requests the following permissions, used solely for style extraction:
- contextMenus — to add the "Extract styles" right-click menu item
- activeTab — to read styles from the page you choose to analyze
- scripting — to inject the extraction script into the current tab
- storage — to temporarily pass extracted data to the style book page
- host_permissions (<all_urls>) — to fetch cross-origin stylesheets (CSS files loaded from CDNs) that the target page uses
Third parties
BacktraceDesign does not use any third-party services, SDKs, or analytics tools. No data is shared with or sold to any third party.
Changes to this policy
If this policy is updated, the changes will be posted on this page with an updated date.
Contact
If you have questions about this privacy policy, contact backtracedesign@duque.ai.