title: AppCompat DayNight theme always appears as a Light theme?
body: <p>I am using the new Theme.AppCompat.DayNight theme of AppCompat introduced in <a href="http://android-developers.blogspot.com/2016/02/android-support-library-232.html" rel="noreferrer">version 23.2</a>, but instead of switching between a day (light) and night (dark) theme automatically, it always appears as a light theme. How can I get it to switch to a dark theme?</p>