latest DeLorean theme for gtk-3.22 Only the GNOME Shell theme is working and even that could probably be considered a hackjob.
I have no experience with GTK+ themes whatsoever and I'm not a designer (I lack both skill and talent). So GNOME Shell 3.22 users, feel free to download and use this theme!
For changing back to the glass look, see the changes I made where I either: removed "transparent" or replaced it with "#2C2C2E"