Green Blend Mode

--result.red := a.red;
--result.green := b.green;
--result.blue := a.blue;
-- ******* green mode *************
on GreenBlendMode (image1, image2) 
  theWidth = image1.width - 1
  theHeight = image1.height - 1
  theImage = image(theWidth + 1, theHeight + 1, 32)
  repeat with x = 0 to theWidth
    repeat with y = 0 to theHeight
      theColour1 = image1.getPixel(point(x,y))
      theColour2 = image2.getPixel(point(x,y))
      theNewColour = color(0,0,0)
      theNewColour.red = theColour1.red
      theNewColour.green = theColour2.green
      theNewColour.blue = theColour1.blue
      theImage.setPixel(point(x, y), theNewColour)
    end repeat
  end repeat
  return theImage
end