About this fork

This fork attempts to revive lightly with a different approach from boehs, with the assumption that Luwx won't ever resume his project.

This means that this fork allows real changes, and not just maintainence.

What changed?

Redesign the tabbar
Make the buttons sligthly larger
Change the defaults to fit the normal use-cases better
Add my own colorscheme to it
Make installation in all major distros easy
Rename the project to something like „Darkly”
Maintain the project

Installation

Automatic

Thanks to @DeltaCopy, you can use one of these install methods:

Manual

To ensure this application style works on applications still using QT5 both QT5 and QT6 dependencies are required to be installed before building from source.

Installation script

Note

A script called install.sh is now available which both builds and installs this application style.

./install.sh will remove if existing, build and install Darkly using both QT5/QT6 dependencies.

./install.sh QT5 will build & install using only QT5/KF5 dependencies.

./install.sh QT6 will build & install using only QT6/KF6 dependencies.

./install.sh remove will remove Darkly.

Void Linux

sudo xbps-install -Sy git extra-cmake-modules base-devel qt6-base qt6-base-devel qt6-tools-devel \
      kf6-kcmutils-devel kf6-kconfigwidgets-devel kf6-kdecoration-devel \
      kf6-kirigami-devel kf6-kcoreaddons-devel kf6-kcolorscheme-devel \
      kf6-kconfig-devel kf6-kguiaddons-devel kf6-ki18n-devel kf6-kiconthemes-devel \
      kf6-kwindowsystem-devel kf6-frameworkintegration-devel kf6-karchive-devel \
      kf6-kcodecs-devel kf6-kwidgetsaddons-devel qt6-declarative-devel \
      qt6-svg-devel qt6-wayland-devel kf6-kwidgetsaddons-devel kf6-knotifications-devel

git clone --single-branch --depth=1 https://github.com/Bali10050/Darkly.git
cd Darkly
./install.sh QT6

Arch Linux

sudo pacman -S --noconfirm cmake extra-cmake-modules kdecoration qt6-declarative kcoreaddons \
      kcmutils kcolorscheme kconfig kguiaddons kiconthemes kwindowsystem git \
      qt5-declarative qt5-x11extras gcc make kcmutils5 \
      frameworkintegration5 kconfigwidgets5 kiconthemes5 \
      kirigami2 kwindowsystem5

git clone --single-branch --depth=1 https://github.com/Bali10050/Darkly.git
cd Darkly
./install.sh

Fedora

Fedora 40/41

sudo dnf install -y git cmake extra-cmake-modules "cmake(KDecoration2)" kwin-devel \
      kf6-kcolorscheme-devel kf6-kguiaddons-devel kf6-ki18n-devel kf6-kiconthemes-devel \
      kf6-kirigami-devel kf6-kcmutils-devel kf6-frameworkintegration-devel \
      libepoxy-devel "cmake(Qt5Core)" "cmake(Qt5Gui)" "cmake(Qt5DBus)" "cmake(KF5GuiAddons)" \
      "cmake(KF5WindowSystem)" "cmake(KF5I18n)" "cmake(KF5CoreAddons)" "cmake(KF5ConfigWidgets)" \
      "cmake(Qt5UiTools)" "cmake(KF5GlobalAccel)" "cmake(KF5IconThemes)" "cmake(KF5Init)" \
      "cmake(KF5KIO)" kf5-kpackage-devel kf5-kcmutils-devel qt5-qtquickcontrols2-devel \
      kf5-kirigami2-devel "cmake(KF5FrameworkIntegration)"

git clone --single-branch --depth=1 https://github.com/Bali10050/Darkly.git
cd Darkly
./install.sh

openSUSE Tumbleweed

sudo zypper in --no-recommends git ninja cmake kf6-extra-cmake-modules kf6-kconfig-devel \
      kf6-frameworkintegration-devel gmp-ecm-devel kf6-kconfigwidgets-devel \
      kf6-kguiaddons-devel kf6-ki18n-devel kf6-kiconthemes-devel kf6-kwindowsystem-devel \
      kf6-kcolorscheme-devel kf6-kcoreaddons-devel kf6-kcmutils-devel \
      qt6-quick-devel kf6-kirigami-devel qt6-base-devel kdecoration6-devel \
      qt6-tools qt6-widgets-devel gcc-c++ extra-cmake-modules libQt5Gui-devel \
      libQt5DBus-devel libqt5-qttools-devel libqt5-qtx11extras-devel \
      libQt5OpenGL-devel libQt5Network-devel libepoxy-devel kconfig-devel \
      kconfigwidgets-devel kcrash-devel kglobalaccel-devel ki18n-devel kio-devel \
      kservice-devel kinit-devel knotifications-devel kwindowsystem-devel kguiaddons-devel \
      kiconthemes-devel kpackage-devel kwin5-devel xcb-util-devel xcb-util-cursor-devel \
      xcb-util-wm-devel xcb-util-keysyms-devel kcmutils-devel \
      libqt5-qtquick3d-devel kirigami2-devel libKF5I18n5

git clone --single-branch --depth=1 https://github.com/Bali10050/Darkly.git
cd Darkly
./install.sh

KDE neon

sudo apt install -y git build-essential cmake kf6-extra-cmake-modules \
      kf6-extra-cmake-modules kf6-frameworkintegration-dev \
      kf6-kcmutils-dev kf6-kcolorscheme-dev kf6-kconfig-dev kf6-kconfigwidgets-dev \
      kf6-kcoreaddons-dev kf6-kguiaddons-dev kf6-ki18n-dev kf6-kiconthemes-dev \
      kf6-kirigami2-dev kf6-kpackage-dev kf6-kservice-dev kf6-kwindowsystem-dev \
      kirigami2-dev kwayland-dev libx11-dev libkdecorations2-dev libkf5config-dev \
      libkf5configwidgets-dev libkf5coreaddons-dev libkf5guiaddons-dev libkf5i18n-dev \
      libkf5iconthemes-dev libkf5kcmutils-dev libkf5package-dev libkf5service-dev \
      libkf5style-dev libkf5wayland-dev libkf5windowsystem-dev libplasma-dev \
      libqt5x11extras5-dev qt6-base-dev qt6-declarative-dev qtbase5-dev \
      qtdeclarative5-dev gettext qt6-svg-dev extra-cmake-modules qt3d5-dev

git clone --single-branch --depth=1 https://github.com/Bali10050/Darkly.git
cd Darkly
./install.sh

Distrobox (Fedora 41)

distrobox create --name lightly --image registry.fedoraproject.org/fedora-toolbox:41
distrobox enter lightly

sudo dnf install -y git cmake extra-cmake-modules "cmake(KDecoration2)" kwin-devel \
    kf6-kcolorscheme-devel kf6-kguiaddons-devel kf6-ki18n-devel kf6-kiconthemes-devel \
    kf6-kirigami-devel kf6-kcmutils-devel \
    libepoxy-devel "cmake(Qt5Core)" "cmake(Qt5Gui)" "cmake(Qt5DBus)" "cmake(KF5GuiAddons)" \
    "cmake(KF5WindowSystem)" "cmake(KF5I18n)" "cmake(KF5CoreAddons)" "cmake(KF5ConfigWidgets)" \
    "cmake(Qt5UiTools)" "cmake(KF5GlobalAccel)" "cmake(KF5IconThemes)" "cmake(KF5Init)" \
    "cmake(KF5KIO)" kf5-kpackage-devel kf5-kcmutils-devel qt5-qtquickcontrols2-devel \
    kf5-kirigami2-devel "cmake(KF5FrameworkIntegration)"

git clone --single-branch --depth=1 https://github.com/Bali10050/Darkly.git
cd Darkly
mkdir build
cd build
cmake -DCMAKE_INSTALL_PREFIX=$HOME/.local \
      -DCMAKE_BUILD_TYPE=Release \
      -DCMAKE_INSTALL_LIBDIR=lib64 \
      -DBUILD_TESTING=OFF ..

cd ./kdecoration/config/
make -j $(nproc)
cd ../../
make -j $(nproc)
make install

Set environment variable on plasma startup:

echo "export QT_PLUGIN_PATH=$HOME/.local/lib64/plugins:\$QT_PLUGIN_PATH" > $HOME/.config/plasma-workspace/env/localthemes.sh && chmod +x $HOME/.config/plasma-workspace/env/localthemes.sh

Kubuntu (24.10)

sudo apt-get install -y -qq cmake build-essential libkf5config-dev libkdecorations2-dev \
      libqt5x11extras5-dev qtdeclarative5-dev extra-cmake-modules \
      libkf5guiaddons-dev libkf5configwidgets-dev libkf5windowsystem-dev kirigami2-dev \
      libkf5coreaddons-dev libkf5iconthemes-dev gettext qt3d5-dev libkf5kcmutils-dev \
      qt6-base-dev libkf6coreaddons-dev libkf6colorscheme-dev \
      libkf6config-dev libkf6guiaddons-dev libkf6i18n-dev libkf6iconthemes-dev \
      libkf6windowsystem-dev libkf6kcmutils-dev libkirigami-dev

git clone --single-branch --depth=1 https://github.com/Bali10050/Darkly.git
cd Darkly
./install.sh

Nixos

add inputs.lightly.url = "github:Bali10050/Darkly"; to flake.nix
nixos or home-manager

for home-manager

qt = {
  style.package = [
    inputs.lightly.packages.${pkgs.system}.darkly-qt5
    inputs.lightly.packages.${pkgs.system}.darkly-qt6
  ];
  platformTheme.name = "qtct";
};

for nixos

qt.platformTheme = "qt5ct";
environment.systemPackages = with pkgs; [
  inputs.lightly.packages.${pkgs.system}.darkly-qt5
  inputs.lightly.packages.${pkgs.system}.darkly-qt6
];

select lightly in qt5ct / qt6ct

Known issues & solutions

Blurred icon rendering on Wayland with fractional scaling

As referenced in #14

On Wayland when scaling is set to >100% some icons appear blurred.

The fix for now until QT is updated is to add QT_SCALE_FACTOR_ROUNDING_POLICY=RoundPreferFloor into the file /etc/environment

Restart to apply the changes.

For further details see: https://bugs.kde.org/show_bug.cgi?id=479891

Bali10050/Darkly