OS elements changing

how do I get rid of the operating system elements like the status bar and the bottom handle? is changing the color very subtle but owl is very good at seeing it, the problem is even if nothing changes in the app it will detect a chage in that handle.

what i did for the statusbar was ` but I haven't found anything useful for the handle on the bottom.

I was also trying detox and I saw something that could be useful for owl, in detox I can take a snapshot of a container with a testID, I found it very clever but I like owl because I can see the differences like in the picture above.