Here is everything you need to know about giving 7-Zip a modern, dark makeover. If you download the latest stable version of 7-Zip (as of 2024/2025), you won't find a "Toggle Dark Mode" button in the settings. The official version is still tethered to the classic Windows UI framework.
So, does 7-Zip have a native dark theme? And if not, how do you get one? 7zip dark theme
However, if you are running (version 22H2 or later), there is a hidden handshake between 7-Zip and the operating system. The latest beta versions of 7-Zip (and the builds available on the official forums) have begun supporting the OS-wide "Choose your default app mode." Here is everything you need to know about