How do I add tap event and update View with SwiftUI for Widget without opening parent application?

Question

Here is how my widget looks like:

and this is how it looks in code:

struct WidgetTimerEntryView : View {
    var entry: WidgetTimerEntry
    var backgroundColor: Color {
        return Color(Options.shared.currentMode.underlayBackgroundColor)
    }
    var body: some View {
        VStack(alignment: .center, spacing: 5) {
            Image(Options.shared.timerIsPaused ? "icon-play" : "icon-paused")
                .scaledToFit()
                .frame(width: 30.0, height: 30.0)
                .cornerRadius(15)
                .clipped()
        }
        .padding(.all, 10)
        .background(backgroundColor)
    }
}

Now I need the following things:

1. Why my corner radius doesn't work?
2. How to attach the tap event to Image without opening parent application?
3. How to update my View?