In order to implement a store design I need to modify the appearance of the variation option menus that are native to FoxyShop. These variations menus are generated in the `foxyshop_product_variations()` function in FoxyShop's helperfunctions.php file. The situation I am encountering is one in which I'm having to modify after-the-fact the html content that this function generates. It's very hacky! Is there a best-practices method for customizing FoxyShop's helper functions so that I don't break things for future updates?