ContentViewFetchedResults.swift

struct ContentView: View {
    @ObservedObject var viewModel: ViewModel
    
    var body: some View {
        NavigationView {
            VStack {
                List(viewModel.colors, id: \.objectID) { (colorItem) in
                    Cell(colorItem: colorItem)
                }
            }.navigationBarTitle("Colors")
        }
    }
}