Geekspiff today released ThemePark 1.0, new software that lets you 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 paste them into ThemePark to create a new theme or modify an existing one,” notes the developer. The software allows you to export your themes in ‘dlta’ or ‘xscheme’ format to share. ThemePark is US$20 shareware.