The directory comparison result is presented using two tree-like structures, showing
files and folders names, size and modification date.
A column holding graphic symbols separate the two
tree-like structures. The graphic symbols can be:
- an "X" sign, when a file or a folder exists only in one of the compared
- a "not-equal" sign, if a file exists in both directories, but the content is different.
The same sign appears when a collapsed folder contains modified files.