This is a generic holiday skin made to help celebrate the winter holiday season. There are no references to any specific holiday (Christmas, Hannaku, etc) so it should be suitable to use for everyone.
The main background is a space-invaders wrapping paper, and the user types their login information into a gift tag. The paper then rips away to reveal the main interface. The category transition and mouse-over sound FX have been replaced with a bell/chime sound to fit the holiday.