How do I modify the background color of a List in SwiftUI?

This will set the background of the whole list to green:

init() {
   UITableView.appearance().separatorStyle = .none
   UITableViewCell.appearance().backgroundColor = .green
   UITableView.appearance().backgroundColor = .green
}

Ok, I found the solution for coloring the list rows:

struct TestRow: View {

    var body: some View {
        Text("This is a row!")
        .listRowBackground(Color.green)
    }
}

and then in body:

List {
    TestRow()
    TestRow()
    TestRow()
}

This works as I expect, but I have yet to find out how to then remove the dividing lines between the rows...