System76 has been working on its own Linux desktop environment for years, called COSMIC Desktop.

System76 is also making appearance customization a priority.

Theres an integrated theme system, with the ability to easily share themes for other people to try.

Terminal window showing the manual page for the Mutt email client on Linux

This is the very first public alpha, so theres still a lot of functionality missing.

You candownload the COSMIC alpha ISOfrom the System76 website.