@XmlSerialName(value = "x", namespace = "http://www.google.com/kml/ext/2.2", prefix = "gx")
@XmlElement
If the specifies an icon palette, these elements identify the offsets, in pixels, from the lower-left corner of the icon palette.If no values are specified for x and y, the lower left corner of the icon palette is assumed to be the lower-left corner of the icon to use.