Heard of skinnable mp3 players like Sonique and Winamp? ICQ2000a also features 'skins' - custom graphical interface. Calenz is a calendar program that allows 'skins' to be loaded which can change the shape and appearance of the calendar.
calenz
Version 1.1 is now available. This version allows for more font customization and effects like italic and bold text for buttons and components. Web links to pages at www.calenz.com are available at the options window.