Please be patient, new member.
I know, I am reviving a very old request but having found this great program the one feature that would make it excellent for me (and I am obviously not alone) as opposed to great would be this exact feature.
Adding in the <> to the tolerance options would make this excellent.
We have way too many files to catalogue and need to easily weed out the thumbnails which tend to be "< or > a size" not "around a size"

The use of the folder delimiter also really needs a better explanation.