Install granite-demo by entering the following commands in the terminal:
sudo apt update sudo apt install granite-demo
Description:
extension of GTK+ libraries (demo binary)
Granite is an extension of GTK+. Among other things, it provides complex widgets and convenience functions designed for use in apps built for elementary OS. . This package contains a small demo application to show Granite Widgets.
Homepage: https://github.com/elementary/granite
Version: 0.5+ds-1
Section: universe/misc