DraggableImageArea.swift

struct DraggableImageArea: View {

    @Binding var iconName: String?

    var body: some View {
        Image(systemName: iconName ?? "x.circle")
        .resizable()
        .background(Color.green)
        .frame(width: 50, height: 50)
        .dropDestination(for: String.self) { items, location in
            iconName = items.first
            return true
        }
    }
}