Request #17401 has been accepted by diabonas [1]: I would hope that this is at least only the trial version that apparently used to be freely downloadable from the website of the software company (even though redistribution in a Dropbox folder still seems to be extremely questionable). Anyway, multiple people in the package comments stated that the software does not even start any more, so I am deleting the package.
[1] https://aur.archlinux.org/account/diabonas/
