Classic Theme Toggle (Popup Demo)

Classic Theme Toggle (Popup Demo) is a lightweight Chrome extension that demonstrates a simple dark and light mode switch for an extension’s own popup interface. The extension allows users to toggle between light and dark themes using a classic-style design. The selected theme is applied only to the extension popup and is saved locally in the browser so the preference is remembered the next time the popup is opened. This extension works entirely offline and does not interact with any websites. It does not inject scripts, does not request special permissions, and does not collect or transmit any user data. All theme changes are handled locally within the extension UI. This extension is intended as a visual demo and reference for users or developers who want to see how a clean and classic theme switcher can be implemented inside a Chrome extension popup.