How to find light mode


I was wondering if there is a light mode on the app Adobe Scan where the background can be white instead of grey when editing a scan.
My phone IS in light mode, so that is not the issue. When I am scanning documents, I need to be careful to crop out the background behind the document. Because of the dark background, I cannot see when I have left a little bit of the background behind the document until I check on my files on Adobe on the computer, then I have to go back and re-edit the scan on my phone. I do not wish to crop the files on the website version because the crop feature is very cumbersome online and is much more user friendly on the app, where I am already cropping the files. Why should I have to crop in 2 different places?
Please see attached photos for descriptions of the problem.
