I recently upgraded my Motorola Droid 4 from CM11 (Android 4.4) to CM13 (Android 6). Now when I pull down the notification drawer in landscape mode, the notifications don't fill the whole screen. There is a margin to the left and the right side of the notifications. This margin seems to be a fixed ammount of pixels, as on higher DPI devices it is much smaller. Since my Droid 4 only has a rather low resolution, the margins take about one third of the screen width. Is there any way to get it back to the way it was in CM11?
I have root and don't mind installing a new notification bar app (as long as it's not terribly slow, I am on a rather old device) or even recompiling parts of Android/CM.