New full-screen widget, which started a couple of months ago, became available to all users in the new version of Shift Schedule Widget Pack.
Widget was added to the alpha-version and was avaliable for testers only. The app was updated a couple day ago to version 3.7. So the widget now is available for all users of the app.
Also some bugs were fixed in the app. Now the widget is able to work on Android 5.x. Many thanks for users that sent the reports about the bugs.