Last Updated: December 28, 2025

1. Overview

This Privacy Policy describes how the Chrome extension "SideStyle - CSS Inspector" (hereinafter referred to as "the Extension") handles user information. The Extension is designed with a focus on convenience for designers and developers, ensuring that only the minimum necessary data is retained within the user's local environment.

2. Data Collection and Acquisition

To provide its functionality (analyzing and saving styles), the Extension collects the following data:

• Style Information: CSS properties of web page elements (decorative information such as fonts, colors, sizes, margins, borders, etc.).
• Element Information: Tag names and class names of the selected elements.

3. Purpose of Data Use

The collected data is used exclusively for the following purpose:

• To list and manage the acquired style information within the side panel.
• No data is used for analytics, tracking, or advertising purposes.

4. Use of Permissions

The Extension uses the following permissions for their respective purposes:

• sidePanel: To display the acquired information in the browser's side panel, allowing users to review it while browsing web pages.
• storage: To save the acquisition history so that information is retained even after the browser is closed.
• scripting / activeTab: To execute scripts that read the style information of elements on the active tab.
• Host Permissions (<all_urls>): To enable the style inspection function on any web page the user accesses.

5. Data Storage and Security

The Extension strictly adheres to the following practices to ensure the confidentiality of your data:

• Local Storage: All data is stored exclusively in the browser's local storage (chrome.storage.local).