The exported representation of colours is an unsigned 32bit value in host order The value is divided into four 8bit channels. These are: Bits	Name	Desciption0-7	Blue	The blue intensity of the colour 0 is off 0xff is fully on8-15	Green	The green intensity of the colour 0 is off 0xff is fully on16-23	Red	The red intensity of the colour 0 is off 0xff is fully on24-31	Alpha	The Alpha component represents the opacity of the colour 0 is fully transparent and 0xff is opaque