[Question] is it possible to remove the "face in" an image?

[kozka]

When adding a UI, when loading it, it loads with a "Face in" the image, making a transition from transparent to solid,
I don't know if there is a way to eliminate this?
I was making a book and it seems to me that it looks a bit ugly.
I imagine that it won't be possible, but oh well, for asking
thanks