The previous commit didn't actually work, and I shouldn't need to
change the variables often, so it's much simpler to not have them.
In the event that I do need to change something, rg and sd should get
the job done well.
It seems like all wine windows may be broken, although there doesn't
seem to be an easy way to allow the resizing of all wine windows without
affecting other windows. In practice this *shouldn't* matter much,
however.