Following an update to Google Keep earlier this afternoon, Google is now rolling out an update to its Play Newsstand app, which was released earlier this year as a replacement for Currents. The update makes some design tweaks, as well as enhances how you can organize your sources.
First off, the My News and My Magazine categories have been merged into a new My Library section. There is also a new Read Now category bar at the top of the interface that autohides and allows you to easily swipe between categories. Finally, the action bar now changes colors depending on what section you are in (News/Business/Sports/etc).
The update is rolling out now, although it is a staged update and may take a while to hit your device. Keep an eye on the Play Store.