Nice program, good job.
Hopefully not a feature I cannot find
Hopefully easy to implement: matching directories if they are a matching subset of another directory. i.e. the Directories have the same matching files, except the second directory has more files than the 1st one. Can color code or mark it differently so the user is aware.
i.e.
Dir1/
1.txt
2.txt
3.txt
dir2/
1.txt
2.txt
3.txt
4.txt
5.txt
files 1,2 and 3.txt all match in the both directories, dir1 is a subset of dir2
Regards