Install latest/edge of gtk2-demo
Ubuntu 16.04 or later?
Make sure snap support is enabled in your Desktop store.
Install using the command line
sudo snap install gtk2-demo --edge
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This snap contains the gtk-demo application, using theme data provided by an external snap.
Generate an embeddable card to be shared on external websites.
Choose your Linux distribution to get detailed installation instructions. If yours is not shown, get more details on the installing snapd documentation.