Rainbow Tree - Version 1.1 If you have started redecorating your apartment for Christmas and New Year, you may want to do the same to your computer desktop. Bring Christmas to your desktop and you feel that your heart fills up with special warmth because Christmas Holiday is coming soon! It can optionally stay on top and you can adjust transparency. Moreover, a mouseover hint will reveal to you how many days are left till Christmas.Rainbow Tree - absolutely freeware.