ps-default-bg

ps-default-bg is a variable defined in `ps-print.el'.
Its value is

nil

Documentation:
RGB values of the default background color.

The `ps-default-bg' variable contains the default background color used by
ps-print, that is, if there is a face in a text that doesn't have a background
color, the `ps-default-bg' color should be used.

Valid values are:

t The background color of Emacs session will be used.

frame-parameter The background-color frame parameter will be used.

NUMBER It's a real value between 0.0 (black) and 1.0 (white) that
indicate the gray color.

COLOR-NAME It's a string which contains the color name. For example:
"yellow".

LIST It's a list of RGB values, that is a list of three real values
of the form:

(RED GREEN BLUE)

Where RED, GREEN and BLUE are reals between 0.0 (no color) and
1.0 (full color).

Any other value is ignored and white color will be used.

This variable is used only when `ps-print-color-p' (which see) is neither nil
nor black-white.

See also `ps-use-face-background'.

You can customize this variable.

This variable was introduced, or its default value was changed, in version 20 of Emacs.