Default [Q] Removing the "Rectangle" from the Lock Screen (full screen widgets)?

Hi guys,

I've had my Z2 for a number of weeks and have enjoyed it very much. Currently rooted on the .402 international firmware, and I've gone ahead and installed Xposed plus a couple modules to start myself off. There's just one thing that really does bug me about the lock screen.

How do I remove that rectangle? My current setup has GravityBox and thanks to it I've enabled full screen widgets, but there seems to be a permanent rectangle on my lockscreen, around the DashClock widget. The fixes that I've found searching on Google are all 3 or 4 years old (or for different devices), the most recent being "Holo Locker" which was last updated in December. Any Xposed modules or other fixes that I can apply easily?

The thumbnails for my old phone and Z2 are (hopefully) attached to this post.

Thanks!
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