Try something new. NodeBox 2 Beta - Now Available for Download

Reference | background()


Syntax
background(r, g, b, a=1.0)
background(h, s, b, a=1.0)
background(c, m, y, k, a=1.0)
background(k, a=1.0)
background(color)
background(None)

DescriptionSets the PDF background color. This command works exactly like the fill() or stroke() command. You can use it to set the PDF background to transparent by supplying None as parameter (so it imports more easily in Photoshop or Illustrator).
ReturnsColor containing the defined color values
Tutorial Colors


Example
background(None)
rect(10, 10, 50, 50)