   override func viewDidLoad() {
     super.viewDidLoad()
 
-    paletteTitle.text = "Material Palette"
+    paletteTitle.text = "Material Palette-based themes"
     paletteTitle.font = titleFont
     paletteTitle.textColor = titleColor
     paletteTitle.translatesAutoresizingMaskIntoConstraints = false

  return scheme
}

class MDCThemePickerViewController: UIViewController, UICollectionViewDataSource,
  UICollectionViewDelegateFlowLayout {


  let titleColor = AppTheme.globalTheme.colorScheme.onSurfaceColor.withAlphaComponent(0.5)
  let titleFont = AppTheme.globalTheme.typographyScheme.button
  private let cellReuseIdentifier = "cell"
  private let colorSchemeConfigurations = [
    MDCColorThemeCellConfiguration(name: "Default",
                                   mainColor: AppTheme.defaultTheme.colorScheme.primaryColor,
                                   colorScheme: { return AppTheme.defaultTheme.colorScheme }),
    MDCColorThemeCellConfiguration(name: "Blue",
                                   mainColor: MDCPalette.blue.tint500,
                                   colorScheme: {
                                    return createSchemeWithPalette(MDCPalette.blue)
    }),
    MDCColorThemeCellConfiguration(name: "Red",
                                   mainColor: MDCPalette.red.tint500,
                                   colorScheme: {
                                    return createSchemeWithPalette(MDCPalette.red)
    }),
    MDCColorThemeCellConfiguration(name: "Green",
                                   mainColor: MDCPalette.green.tint500,
                                   colorScheme: {
                                    return createSchemeWithPalette(MDCPalette.green)
    }),
    MDCColorThemeCellConfiguration(name: "Amber",
                                   mainColor: MDCPalette.amber.tint500,
                                   colorScheme: {
                                    return createSchemeWithPalette(MDCPalette.amber)
    }),
    MDCColorThemeCellConfiguration(name: "Pink",
                                   mainColor: MDCPalette.pink.tint500,
                                   colorScheme: {
                                    return createSchemeWithPalette(MDCPalette.pink)
    }),
    MDCColorThemeCellConfiguration(name: "Orange",
                                   mainColor: MDCPalette.orange.tint500,
                                   colorScheme: {
                                    return createSchemeWithPalette(MDCPalette.orange)
    })
  ]

  private let cellSize : CGFloat = 33.0
  private let cellSpacing : CGFloat = 8.0

