Tested in gnome-shell 40.5, should works in gnome 40 and 41.

integrate the blur effects with rounded corners.The source code can be found here.

Issues:

• It can be buggy with blur effect. see https://github.com/aunetx/blur-my-shell. If you are using intel driver in Xorg session, try create .drirc in your home directory to disable Vertical Synchronization:

  <device screen="0" driver="dri2">
      <application name="Default">
          <option name="vblank_mode" value="0"/>
      </application>
  </device>

  For Nvidia and AUR

  • you need to do makepkg --nocheck -si or it will fail the checks at the end.

• The original shadows of rounded windows has been cutted out, now use MetaShadowFactroy to draw shadows for rounded windows. So the animation effect of shadows in some themes has gone.

install mutter-rounded by AUR helper:

yay -S mutter-rounded

There is a simple script to help you build the packages in ubuntu 21.10. It's neccesary to check the content of script. Before you build the packages, the Source code checkbox in Software & Updates should be enabled:

git clone https://github.com/yilozt/mutter-rounded
cd ./mutter-rounded/ubuntu
./package.sh

# Ubuntu 21.10
sudo dpkg -i libmutter-8-0*.deb mutter-common*.deb

# Ubuntu 22.04
sudo dpkg -i libmutter-10-0*.deb mutter-common*.deb

There are pre-build packages which built by @gregor160300, you can download packages from https://gregor160300.stackstorage.com/s/I4YFXu82ay6mNE0C/en_US.

Alternatively, you can build packages by yourself with scripts in fedora_35 folder. It's neccesary to check the contents in scripts before you run it.

git clone https://github.com/yilozt/mutter-rounded
cd ./mutter-rounded/fedora
./package.sh

After scripts finish, the rpm packages will be found in ~/rpmbuild/RPMS/x86_64/:

cd ~/rpmbuild/RPMS/x86_64/
sudo dnf upgrade mutter
sudo rpm --reinstall mutter-41.*

When you want to remove this patch from your system, just need to install mutter package from official repo. The rounded corners will gone when you login into gnome-shell in next time.

• Arch Linux

sudo pacman -S mutter

• Ubuntu

# Ubuntu 21.10
sudo apt install libmutter-8-0 mutter-common

# Ubuntu 22.04
sudo apt install libmutter-10-0 mutter-common

• Fedora

sudo dnf reinstall mutter

The settings of mutter have driven by GSettings, so you can set config by:

• via gsettings:

  $ gsettings get org.gnome.mutter round-corners-radius 
  14
  $ gsettings set org.gnome.mutter round-corners-radius 8
  

• via dconf-editor, the settings are located in /org/gnome/mutter:

• via mutter_setting, a simple gui written by Gjs.