                     return "9:16 Widescreen HD"
                 case .widescreenLandscape:
                     return "16:9 Widescreen Landscape HD"
+                case .twitter:
+                    return "16:9 Twitter Widescreen Landscape HD"
+                case .youtube:
+                    return "16:9 YouTube Widescreen Landscape HD"
                 case .instagram:
                     return "4:5 Instagram"
                 case .instagramLandscape:

                    return CGSize(width: 4, height: 3)
                case .widescreen:
                    return CGSize(width: 9, height: 16)
                case .widescreenLandscape:
                    return CGSize(width: 16, height: 9)
                case .instagram:

    /// - widescreenLandscape: 16:9 HD landscape
    /// - instagram: 4:5 Instagram
    /// - instagramLandscape: 5:4 Instagram landscape
    /// - instagramStories: 9:16 Instagram stories
    /// - cinematic: 2.35:1 cinematic
    /// - custom: custom aspect ratio
    public enum AspectRatio: CustomStringConvertible {
