A new version of gparted was released recently and I have updated the Fedora package to the latest version – 0.28.1.
This version brings a rather exciting (at least, to me) update – ability to copy and resize already open LUKS filesystems.
For full details, see gparted release notes of both 0.28.0 and 0.28.1
0.28.0 – release notes (0.28.0)
0.28.1 – release notes (0.28.1)
This update is, at the moment, only pushed for Fedora 25. I will test this and submit an update for EPEL-7 in the next few days.
Obligatory screenshots –