55 Amazing Mobile App UI Designs with Ultimate User Experience - 40 Beautiful use of color. Interesting to have a gradient background behind multiple UI elements
Wireland - Wireframe Library for Web Design Projects - Sketch Template
Wireland – is a Complete Wireframing Library Collection optimized to structure web design projects really fast and easy while getting great results. This library consist on 190+ ready-to-use layout sections divided into 19 popular content categories. Excellent for Landing Pages and any kind of Web design Projects. Web Navigation, Footer Styles.
I like the fact that the main content on the page never disappears, although the interacting with the side bar is at an all time high. It's a very clean layout with flat ui colors that speaks nicely to the flow of the app.