Breeze10 is a fork of KDE Breeze decoration with the following changes:
- The title-bar opacity is configurable.
- The separator between title-bar and window is removed.
- Opaqueness, opacity override is added to the exception list properties.
- Title-bar font is set indpendent from the KDE font settings (for use outside KDE).
Breeze10 was started from BreezeEnhanced (https://github.com/tsujan/BreezeEnhanced), a former fork of Breeze with title-bar translucency and blurring.
There are some dependencies you'll need to install. Some people suggested using the following commands:
sudo apt install git g++ extra-cmake-modules cmake gettext libkf5config-dev libkdecorations2-dev libqt5x11extras5-dev qtdeclarative5-dev libkf5guiaddons-dev libkf5configwidgets-dev libkf5windowsystem-dev libkf5coreaddons-dev libfftw3-devsudo pacman -S kdecoration qt5-declarative qt5-x11extras kcoreaddons kguiaddons kconfigwidgets kwindowsystem fftw cmake extra-cmake-modulessudo zypper install git extra-cmake-modules libkdecoration2-devel kcoreaddons-devel kguiaddons-devel kconfig-devel kwindowsystem-devel ki18n-devel kconfigwidgets-devel libQt5DBus-devel libqt5-qtx11extras-devel fftw3-develThe version number in the file NEWS shows the main version of KWin that is required for the compilation. Compilation should not be done against other versions of KWin!.
Open a terminal inside the source directory and do:
mkdir build && cd build
cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_BUILD_TYPE=Release -DKDE_INSTALL_LIBDIR=lib -DBUILD_TESTING=OFF -DKDE_INSTALL_USE_QT_SYS_PATHS=ON
make
sudo make installAfter the intallation, restart KWin by logging out and in. Then, Breeze10 will appear in System Settings → Application Style → Window Decorations.
None so far.

