...To be honest, we who are not superheroes, can't know all best things from the world. So, for saving your time, we suggest you to pick those you like, take benefits from them, and finally put it into your kit. Stock, Icon and Logo, Color, Typography, Toolkit, Prototyping, Mockup, User Testing.
...It abstracts away the boilerplate associated with combining a ViewPager + PagerAdapter + header + toolbar + tabstrip — so instead of wiring all that manually, you drop in a single custom view in your layout and configure with XML attributes (header height, header image or logo, colors, fade, etc). The library supports customizing header appearance (static or animated), logos, toolbar behavior when you scroll, and integrates with Android’s view hierarchy (tabs, recycler views).