title: How to customize picker page selection
body: <p>I have a standard picker in a list, customized in dark colors.
  When I tap on the picker, it opens the page with the choices, but the background is white, and I would like it to be black.</p>
  <p>Didn't succeed to find the appropriate settings :(
  Thanks for your help</p>
  <p>My code :</p>
  <pre><code>import SwiftUI
  let choices = [&quot;red&quot;, &quot;blue&quot;, &quot;yellow&quot;]
  
  struct test4: View {
      
      @State private var myColor: String = choices[0]
      
      var body: some View {
          VStack {
              List {
                  Picker(selection: $myColor, label: Text(&quot;Type&quot;)) {
                      ForEach(choices, id: \.self) { col in
                          Text(col).foregroundColor(Color.gray)
                      }
                  }
                  .listRowBackground(Color.row)
              }
          }
          .background(Color.black)
      }
  }
  </code></pre>
  <p>Page with the picker
  <img src="https://i.stack.imgur.com/f7hLr.png" alt="Page1" /></p>
  <p>Picker selection
  <img src="https://i.stack.imgur.com/P7XBd.png" alt="Page2" /></p>