The Fyne toolkit comes with an example application built in that can be used to explore its features and assets. We can use this to verify that the setup is working. Simply use the Go tools to install the application and then run it using the fyne_demo command:
Install and run the fyne_demo command from the project repository
Running the demo application opens a single window that offers various options to explore. If we tap on a few items, additional windows will open and you should see something like this:
Some of the features demonstrated in Fyne's example application