This post is part of series we're writing on more advanced Drupal themes. In an earlier post we introduced Responsive Web Design in Drupal, focusing closely on the Adaptive Theme framework. We also covered the very popular Omega framework.
Those are two of some of the most commonly Drupal's theme frameworks along with others such as Zen, Fusion and Tao. However, there are many more.
Out of the 25 most popular themes on Drupal.org, 17 of the most popular are either frameworks or sub-themes that sit on top of a framework. That's how most Drupal themes get designed. In this tutorial we're going to introduce you to some of the less commonly used theme frameworks. None of these appear on the frontpage of http://drupal.org/project/themes.
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