[h-e-w] color-themes, name of display part

[Stephen Leake]

I've just started playing with color-theme.el
(http://www.emacswiki.org/cgi-bin/wiki.pl?ColorTheme), and I love it.

However, I don't know the name of the two vertical strips on the sides
of the display, where the line wrap symbols show. So I can't set that
color. Anybody know? I looked thru the Emacs info, but didn't find
anything about those strips.

-- 
-- Stephe