Free UI kit for android App with google's material design // lepix.org
UI Concept | all in one app
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.
obvi we can't use purple but i really like the use of color in the icons on the dark background. really invites the user to act