   func onboardingConfigurationItem(item: OnboardingContentViewItem, index: Int) {
     delegate?.onboardingConfigurationItem(item, index: index)
   }
-
-}
+  
+}

    }
    return pageView
  }

  private func createItemsInfo() -> [OnboardingItemInfo] {
    guard case let dataSource as PaperOnboardingDataSource = self.dataSource else {
      fatalError("set dataSource")
    }

    var items = [OnboardingItemInfo]()
    for index in 0..<itemsCount {
      let info = dataSource.onboardingItemAtIndex(index)

    }
    return items
  }
  
}

// MARK: helpers

extension PaperOnboarding {
  
  private func bakcgroundColor(index: Int) -> UIColor {
    guard let color = itemsInfo?[index].color else {
      return .blackColor()
