Reports suggest Google has released the new Material Theme Design for the Android Messages application in version 3.5.048 to all users. The earlier 3.3 version also had the Material Theme design, though it was a hidden option. The latest version rolled out will have an entirely new UI along with the inclusion of a brand new dark mode as well.
The current update to the UI is an entirely new rewrite of the old one, as it looks completely different. In Fact, earlier there was no dark mode theme for Android Messages. It will be yet another Google made application to join the group of other applications like YouTube to get the dark mode theme. The Android Messages, dark mode theme will benefit a large number of users, in countries where people interact with each other using SMS heavily.
Since the introduction of the Material Design theme, Google is redesigning a number of its first-party applications to fit them into the scheme of things. The release of Android Messages dark mode might open the floodgates to releasing even more material theme redesigned applications. We can expect the updates being applied to Google Photos, Gmail and many other Google applications. The latest update is neat and certainly feels a lot better than the old design.
You can head over to the APKMirror mentioned below and install it. In case you don’t see the option for the new design, force stop the application, clear the cache and check again. Some users may not see it right away, try to repeat the clear cache process twice and it will fix it for sure. The update has been confirmed by many users on Reddit posting reports suggesting an update from Google Play Store.
In case it does not work with your phone, then you will have to wait. You can also download the APK here.