Install gtk-sharp3-examples by entering the following commands in the terminal:
sudo apt update sudo apt install gtk-sharp3-examples
Description:
sample applications for the GTK# 3.0 toolkit
GTK# 3.0 is a CLI (.NET) language binding for the GTK+ 3.0 toolkit and related libraries. . This package contains some example programs that are distributed with the GTK# assemblies, including source to build them and learn from them.
Homepage: http://www.mono-project.com/GtkSharp
Version: 2.99.3-2
Section: universe/cli-mono