IDL plot with white background

Accepted by: CONTOUR Procedure, PLOT Procedure, SURFACE Procedure, System variable equivalent: !P.BACKGROUND.

The background color index or 24-bit color value to which all pixels are set when erasing the screen or page. The default is 0 (black). Not all devices support erasing the background to a specified color.

For example, to produce a black plot with a white background on an indexed-color display:

PLOT, Y, BACKGROUND = 255, COLOR = 0

Note: If the NOERASE keyword (or !P.NOERASE) is set, the value of the BACKGROUND keyword (or !P.BACKGROUND) is ignored.