To quote the maintainer in another bug.
--- The reason is that these settings make no sense. Why should a terminal be transparent, or have an image behind everything, but the same not apply to, say, gedit, or firefox, or evolution?
--- The reason is that these settings make no sense. Why should a terminal be transparent, or have an image behind everything, but the same not apply to, say, gedit, or firefox, or evolution?
This is why in Gnome, all tab bars are on top, including in the terminal. Consistency for the sake of consistency.