macos-titlebar

GTK3 CSS stylesheet that apply MacOS style buttons over current GTK theme without changing it. Tested with elementary OS but should work with any GTK3 desktop.

Night

Day

Pre-requisites

To have window minimize button and move buttons to the left install:

• elementary OS Odin 6 pantheon-tweaks. Choose Windows layout macOS. Toggle Force to use dark stylesheet if using dark theme.
• elementary OS Hera 5 and before elementary-tweaks
• for Gnome desktop gnome-tweaks or sudo apt install gnome-tweaks

Install theme

Make backup of ~/.config/gtk-3.0 folder, then unzip theme file and copy folder content to ~/.config/gtk-3.0.

Flatpak theming

Run this command to override xdg-config and have buttons themed for flatpak apps:

flatpak override --user --filesystem=xdg-config/gtk-3.0:ro

To have entire elementary theme for flatpak apps you have to install current theme as flatpak app. To do that use pakitheme bash script.

There still might be some apps that will ignore it, but majority will work fine. Logout or reboot to apply changes.

To uninstall

To remove flatpak themes:

flatpak uninstall <full theme name>

Delete ~/.config/gtk-3.0 folder, restore backup.