 
     @available(iOS 14.0, *)
     func generateLayout() -> UICollectionViewLayout {
-      let listConfiguration = UICollectionLayoutListConfiguration(appearance: .plain)
+      let listConfiguration = UICollectionLayoutListConfiguration(appearance: .insetGrouped)
       let layout = UICollectionViewCompositionalLayout.list(using: listConfiguration)
       return layout
     }

          CBCNode
        > { cell, indexPath, menuItem in
          // Populate the cell with our item description.
          var contentConfiguration = cell.defaultContentConfiguration()
          contentConfiguration.text = menuItem.title
          contentConfiguration.textProperties.color =
            self.containerScheme.colorScheme.onBackgroundColor
          cell.contentConfiguration = contentConfiguration
          cell.backgroundConfiguration = UIBackgroundConfiguration.clear()
        }

      dataSource =

          CBCNode
        > { (cell, indexPath, menuItem) in
          // Populate the cell with our item description.
          var contentConfiguration = UIListContentConfiguration.sidebarCell()
          contentConfiguration.text = menuItem.title
          contentConfiguration.textProperties.color =
            self.containerScheme.colorScheme.onBackgroundColor
