https://bugs.winehq.org/show_bug.cgi?id=41951
--- Comment #4 from Johannes Brandstätter jbrandst@2ds.eu --- Yes, I tried setting it, but via adding "+cvar devMode_enable" on the command line.
It only tried to show a confirmation dialog which was completely black. I clicked randomly on the black surface, as well as pressing Enter and so on... but nothing happened.