Compared to other theming modules

Compared to Skinr (http://drupal.org/project/skinr):

* Livethemer provides a dynamic point-and-click interface to apply styling

* Skinr styles are limited to CSS; Livethemer variations may include additional CSS and/or Javascript, but may also provide an entirely fresh theme function or template file (tpl.php) and the object in question is dynamically regenerated using the new function/template.

* Livethemer allows variations to be applied to specific objects on the page based on a deep knowledge of each Drupal object. For example, you can assign a certain variation to all blocks generated by the user module, or a variation to the first node teaser in a teaser list, or to all comments authored by a certain user.

* Livethemer variations are not inherently theme-specific. In other words, many Livethemer variations are likely to work in most Drupal themes.

Compared to Sweaver (http://drupal.org/project/sweaver):

Like Sweaver, Livethemer provides a dynamic interface for adjusting CSS properties. However Livethemer is fundamentally different in that it enables much more than CSS changes.

It allows site builders to switch between variations for objects on the page (variations are based around theme templates ie *.tpl.php files or theme functions). Livethemer also makes it possible for variations to dynamically add javascript and CSS files to the theme and see the results in real time.