Merry Christmas and happy holidays to our readers at XDA! I hope you’re enjoying the time spent with your family today. Christmas is a great time for gift-giving, and to that end, a few Substratum themers have come together to offer their themes for free, at least temporarily.

You can grab the following Substratum themes for free until the end of the day (midnight GMT). That’s only a few hours away, so hurry and claim them if you’re interested!

These themes are built for the Substratum theme engine, so of course you’ll also need to have the Substratum app installed.

Installing a Substratum theme is easy if your device is rooted and running Android 8.0 Oreo and above. If your device is running Android 7.0 Nougat, then you’ll need a custom ROM with OMS commits (usually the ROM will advertise that somewhere). Finally, if your device isn’t rooted and you are on Android Oreo, then you can install these themes using the Andromeda add-on for Substratum.

Many thanks to the themers for the Christmas day giveaway. Enjoy their work, and leave a rating if you find the theme aesthetically pleasing!