Chameleon board pass / Boarding pass

The boarding pass is designed to use the printing technique which will make
the color of the time-table change with time. The boarding time is showed in
the most prominent place and with the departure time getting closer，the color
of the time-table will change from chromatic color to orange and to a more and
more red color with a warning sign. The design is to better alert people not to
miss the flight.