So you want widgets?
Install Linux Mint KDE
Add the analog clock widget and CLICK on the clock
You get all te holidays
Also when you are running KDE install qtcurve if you don't have it
System settungs > appearence > choose qtcurve
Click apply and click customize
Go to the third um listing " opacity "
Chane all of it to 15% or lower
Click ok and click apply on the main window
Enjoy
EDIT PLEASE READ
If you use your computer late at night then install f.lux
( the Windows version first to make it easy )
http://stereopsis.com/flux/
After you install the windows version and want an even warmer screen then go to the linux version but it's not easy to setup
You can do the following though ( without the $ )
$ xflux -z##### -k 2700
Put zipcode for the # if you live in the US