Calendar in Mac OS 10.8.2
I wanted to remove the leather theme, so I applied the Fredrik Wiker tweak, "Mountain Tweaks" but forgot to back up Calendar. Tweak messed it up and it won't open now.
I can't seem to find a download link on Apple's support/download pages for iCal/Calendar.
How can I acquire Calendar 6.0 to overwrite the non-functioning one in my OS?
Thanks.