Is it possible to get the current color of the current screen on an Ubuntu 10.04 desktop?

I am thinking of using the current color so that I can use it in my Tk code. Something along the lines... 
use Tk;
my $mw = MainWindow->new();
$mw->configure( -background => "$current_color" );

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In reply to Getting the Color of the Current Screen by Anonymous Monk

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