DefEcs

DefEcs (Def stands for Defaults and Ecs denotes X) is a viewer / editor of the settings dabase in Mac OS X.

The database (also called the application defaults database) stores configuration information of most of the applications and of the operating system itself. The system itself lacks a convenient editor of the defaults database (there's only a terminal-based utility called defaults) and you may find DefEcs useful from time to time.