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

There's an xterm control sequence for this:

\e]11;?\a

(\e and \a are the ESC and BEL characters, respectively.)

Xterm-compatible terminals should reply with the same sequence, with the question mark replaced by an X11 color name, e.g. rgb:0000/0000/0000 for black.