You can see an example of this in gtk3-widget-factory by going to page 2 and incrementing the spinbutton. You need to apply the app-notification style class to a widget in a revealer in an overlay
You can see an example of this in gtk3-widget-factory by going to page 2 and incrementing the spinbutton. You need to apply the app-notification style class to a widget in a revealer in an overlay