Box that compares 'original' and 'modified' file consists of two tabs, so you have to switch between them; it would be much more convenient if both images would be displayed in the same time, next to each other, so effect is better seen! And there is

Box that compares 'original' and 'modified' file consists of two tabs, so you have to switch between them; it would be much more convenient if both images would be displayed in the same time, next to each other, so effect is better seen! And there is enough space in the window to do that!