Is there a general design pattern for components?

[elisedemarie]

I've been using egui casually now for a couple of months and am struggling to find if there as an agreed best way to design components. I see that the Widget trait can be implemented on components so they can be added to the UI and that seems like a good approach but then in the Demo components don't implement Widget, they implement a new trait, View, so I'm just not sure if there's a best way to go. Any advice or ideas would be appreciated!