Can someone point me to a good resource that provides straight forward information on how to create/apply themes and colors to the native android app, please? I am a bit (or a lot) confused here. In VS2015 I can change the background property of a single activity to some color and works and shows in the emulator. But if I select a them (from a long list) in the Designer window the changes are reflected right there.... but when I deploy to the emulator - the changes I saw in the design more are not present in the running app in the emulator. Why? What am I missing?