Yaru: Problem installing Yaru Theme from source on Ubuntu 18.04

[sardus-X]

Some time ago, unfortunately not having read the warnings in your README.md file (Installing from source is not recommended for average usage), I tried to install from the sources your new beautiful "20.04" Yaru theme on my Ubuntu 18.04 system, by running these commands:
sudo apt install git meson sassc libglib2.0-dev libxml2-utils
git clone https://github.com/ubuntu/yaru
cd yaru
meson build
cd build
sudo ninja install
it seemed that everything was successful but later I noticed some problems, as shown in these images:


how could this problem be corrected or, alternatively how can I (sigh!) completely uninstall the theme from my system?

[Jupiter007-43]

🤔 I'm not sure, but it must be because the dialog boxes have changed with 20.04.

[Feichtmeier]

The shell theme does not work on 18.04 build from master
Either build from bionic branch
Or better install the communitheme snap

[Muqtxdir]

Hi @sardus-X ,

alternatively how can I (sigh!) completely uninstall the theme from my system?

To remove *Yaru:*

• To remove all Yaru, first simply run the following in terminal (although some files won't be deleted succesfully)

   cd yaru
   cd build
   sudo ninja uninstall

• The remaining can be removed by doing this:

# This will delete all gnome-shell-theme-folders named Yaru, Yaru-dark
sudo rm -R /usr/share/gnome-shell/theme/Yaru*

# This will delete all GTK3-theme-folders named Yaru, Yaru-light, Yaru-dark
sudo rm -R /usr/share/themes/Yaru*

# This will delete icon-folder named Yaru
sudo rm -R /usr/share/icons/Yaru

# This will delete sound-folder named Yaru
sudo rm -R /usr/share/sounds/Yaru

[Muqtxdir]

To install Yaru on Ubuntu 18.04 (from README):

• To install Yaru (as snap) , simply run the following in terminal:

snap install communitheme

• Restart your computer
• Click on your user, click on the gear icon and select the "Ubuntu with communitheme snap" session from the pop-up, and login
• Now Ubuntu is using the communitheme including the system, applications, icons, sounds and the cursor.

[Feichtmeier]

Thanks @Muqtxdir for the nice rescue instructions!