This snap provides the GTK themes for Ubuntu MATE in a form
that can be used by other snapped applications. It can be installed
alongside the gtk-common-themes snap.
Enable snaps on Pop!_OS and install gtk-theme-traditionalhumanized
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.
Enable snapd
Snap can be installed on Pop!_OS from the command line. Open Terminal from the Applications launcher and type the following:
sudo apt update
sudo apt install snapd
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.
Install gtk-theme-traditionalhumanized
To install gtk-theme-traditionalhumanized, simply use the following command: