This GTK3 theme is part of the Phocus theme collection.

Libadwaita applications can't be themed through a GTK4 theme. The amount of non-libadwaita GTK4 apps is so little, that it is not worth adding a phocus GTK4 theme.

You can manually overwrite the libadwaita colors to somewhat get a phocus feeling. Feel free to copy this example from my dotfiles ~/.config/gtk-4.0/gtk.css. This won't get you the phocus look you are used to, but it is the best we can do.

May proper GTK4 theming rest in piece 🪦

Make sure to install the following dependency:

• npm

Clone the phocus/gtk repository and build/install it using make:

git clone https://github.com/phocus/gtk.git phocus-gtk
cd phocus-gtk
make
sudo make install

Install the AUR package phocus-gtk-theme-git with your favourite AUR helper (or by hand, won't judge).

paru -S phocus-gtk-theme-git

To make development as easy as possible, clone the repository and symlink it into your users ~/.themes directory:

git clone https://github.com/phocus/gtk.git ~/code/phocus
ln -s ~/code/phocus ~/.themes/phocus

Install its npm dependencies:

cd ~/.themes/phocus
npm install

Build the theme by running its build script:

npm run build

Start a watcher that automatically builds when you modify a file:

cd ~/themes/phocus
npm run watch

Make all open GTK applications reload the phocus theme by running:

npm run reload_gtk_theme

This requires you to have xsettingsd installed.

Automatically build on modifications, and make all open GTK applications reload the phocus theme:

npm run watch_and_reload

Enjoy this quick demo of the ultimate comfort workflow:

I am actively working on phocus and other cool projects on the Desktop Makers Discord. It aims to be a community for communities of Linux desktop related projects. If you are looking to collaborate with or want to contribute to great projects, this might be the right place for you.