Or start with the delay....

```

final class ColorService: ObservableObject {

@Published var color: Color = .red

private var cancellable: AnyCancellable?

func start() {

cancellable = Timer.publish(every: 2.0, on: .main, in: .default)

.autoconnect()

.scan(0) { (i, _) -> Int in i + 1 }

.map { [Color.red, Color.blue, Color.green, Color.orange][$0 % 4] }

.sink { [weak self] (color) in

self?.color = color

}

}

}

```