...and just a small shift in viewing angle produces a drastic shift in color to a deep blue.  Purpleen will even show as dark green at some angles.  Any curved or angled surface such as the corners of the Talon, curved front of an ICON2, or handle of a FragBox will show multiple shades at the same time.  Obviously systems that are moveable like laptops show off the biggest color range of prismatic paints.