/**
* Returns the 'value' channel of @color in the HSV space
*
* @param ColorNode $color
* @return string
*/
public function hsvvalue(Node $color)
{
if (!$color instanceof ColorNode) {
return $color;
}
$hsv = $color->toHSV();
return new DimensionNode(Math::round($hsv['v'] * 100), '%');
}
