I just upgraded from 18.04 to 18.10 yesterday, but to my dismay, the new fancy theme, Yaru, was nowhere to be found. Looked around in
Gnome Tweaks to no avail. Turns out some of the theme packages were not properly installed, more specifically the
Enter the command
apt search yaru-* to see installation status of every package containing “yaru-*”. If they are installed they will state [Installed] inside the square brackets, like so:
If they’re not installed, you can simply fix the issue by running
sudo apt install yaru-*. Once complete, log out and back in, and the theme files will be available in
Voila! Remember to also set Cursor, Icons and Sound theme to Yaru in Gnome Tweaks if desired.