In pursuit of the optimal user experience, I usually want to control each aspect of a view. And as there is much more to a good site than a nice colour palette or a funky header image, my interference with an extension’s existing layout goes beyond the scope of CSS alterations. I like to meddle with my site’s views by customizing any output that is generated and that includes Joomla!’s error page.
If you don’t know Magento™ you’ll probably be shrugging your shoulders by now. If you do, you will know that Magento is a feature-rich, professional open-source ecommerce platform. It's guaranteed to give you a whole new perspective on ecommerce and it will likely make existing Joomla!™ ecommerce extensions fade straight into the background upon first sight.