Hey Product Hunt! 👋 I'm Jafar, the creator of Chrome Appearance Switcher. Like many developers and night owls, I frequently switch between light and dark environments. While dozens of extensions invert or style web page contents, **none of them can change Chrome's actual browser chrome** (the tab strip, omnibox address bar, and bookmarks toolbar) due to Google's Manifest V3 sandbox restrictions. You usually have to dig into `chrome://settings/appearance` every time. I built **Chrome Appearance Switcher** to make this seamless: 1. When Chrome is set to "Device" theme, it mirrors the OS application theme. 2. The extension uses Chrome's official Native Messaging API to securely dispatch `WM_SETTINGCHANGE` notifications in Windows. 3. Chrome receives the event and repaints its active window frame instantly — zero browser restart needed. To make setup effortless, the extension features a built-in **System Diagnostics Suite** that can generate and run a 1-click self-contained installer right from the browser. It is 100% open source under MIT, requires no account, and collects zero telemetry or analytics. I'd love to hear your thoughts, feedback, and feature requests (working on sunrise/sunset auto-scheduling next)! 🚀

Chrome Appearance Switcher

Switch Chrome's actual browser UI to Dark Mode instantly

Switch Chrome's actual browser UI to Dark Mode instantly

Forum Threads

Why is it so hard to switch Chrome's actual browser UI in Manifest V3?

Forum Threads

Why is it so hard to switch Chrome's actual browser UI in Manifest V3?