Translucent background for Widgets?

How do I add a visual effect view with blur/translucency to a widget background?

Code Block
struct mainWidgetEntryView : View {
    var entry: Provider.Entry
    var body: some View {
        ZStack {
            Text(entry.date, style: .time)
        }
        //.background(Color.clear) - did not work
        //.visualEffect(.systemBlur) - did not work
    }
}

Same issue here. Still looking for the solution.
I would very much like to know if this is available too.

It's obviously possible, since the battery and Siri widgets do this, but is it strictly Apple-private? Or is there a trick?
Na...you just can't!
Translucent background for Widgets?
 
 
Q