How to determine a terminal's background color?

Question

I\'d like to know if there is any way to determine a terminal\'s background color ?

In my case, using gnome-terminal.
It might matter, since it\'s entirety up to

Answer 1

Aside from apparently rxvt-only $COLORFGBG, I am not aware that anything else even exists. Mostly people seem to be referring to how vim does it, and even that is an educated guess at best.