/**
* Negation
*
* @param ColorNode $color1 The first color
* @param ColorNode $color2 The second color
* @return ColorNode
*/
public function negation(ColorNode $color1, ColorNode $color2)
{
return $this->colorBlend([$this, 'colorBlendNegation'], $color1->getColor(), $color2->getColor());
}
