Remove the white screen a Slide window transition creates when it starts

Question

I am using an activity with a black background. That same activity has a toolbar and a DrawerLayout as well. This white screen makes the look inconsistent.

It can be

Answer 1

I also had this problem but with fragment transitions and since all the solutions that came up were just setting the window background which probably works with activities I wasn't really getting anywhere. Than I thought => let's just try to set the background of rootview in the fragment I'm pushing in to transparent.. And voila, this did the trick. So the rootview of the fragment that I'm pushing looks like this in xml: