2009-01-16  Sven Herzberg  <sven@imendio.com>

        Added the graphics from Daniel Borgmann

        * demos/rgba-demo.c (main): some cleanup
        * demos/rgba-demo.gtkrc: use the new graphics
        * demos/images/alpha_button.png,
        * demos/images/alpha_entry.png,
        * demos/images/background_tile.png: new graphics from Daniel