$Body_Classes Variable in Drupal

Question

I'm working with the Zen theme in Drupal and have discovered that I can get to the $body_classes variable through the _preprocess_page function in template.php.

What I'd like to know is exactly how that $body_classes variable is populated? Where do the terms such as one-sidebar, etc, come from?

Thanks

Answer 1

$body_classes is constructed by zen_preprocess_page() in Zen's template.php file.