DeviceControl provides a collection of methods to control some of the
special features available in mobile devices, e.g., vibration, screen (LCD)
backlight, and screen saver appearance.
DirectGraphics contains some graphics extensions for MIDP Graphics, with
which polygons and triangles can be drawn and filled, images can be
rotated or flipped, alpha channel color supported and raw pixel data can
be directly obtained from the graphics context or drawn to it.