ThemePark - Geekspiff Use ThemePark to create or modify the way Mac OS X looks, as well as to change the appearance of individual applications. Just draw titlebars, buttons, and other widgets in the graphics editor of your choice, and move them into ThemePark to create a new theme or modify an existing one. Also use ThemePark to create icon sets that can change every icon on your system, even common document icons. in Public bookmarkswith customizationfreemacsoftwaretheme