Install libgtk-3-bin by entering the following commands in the terminal:
sudo apt update sudo apt install libgtk-3-bin
Description:
programs for the GTK+ graphical user interface library
GTK+ is a multi-platform toolkit for creating graphical user interfaces. Offering a complete set of widgets, GTK+ is suitable for projects ranging from small one-off tools to complete application suites. . This package contains the utilities which are used by the libraries and other packages.
Homepage: https://www.gtk.org/
Version: 3.22.30-1ubuntu1
Section: misc