PrestaShop/PrestaShop — pull request #1033 by Dh42 (2013-11-26 04:29:28+00:00)
Title: Added Product name to alt tag

In this instance SEO wise the product name is preferable since the product legend is not currently used. Also, even if it is added in the future, the product name is still preferable as it re-enforces the name of the product, not the name for the image.