This app (download on Google Play) has a tailored design with two targets in mind: easiness of use and a colorful experience. Lazy Su features a video inbox with a fluid navigation that, at the same time, allows an embedded visualisation of the videos. The user does not leave the main screen, as opposed to Youtube, while doing the main task of the app.
On the other hand, background color is extracted from each thumbnail and softly transitioned together with the video pager swipe. While thumbnails retain their principal role, the rest of elements stay at a second level of importance.