I'd like to reduce the size of the product thumbnails on the "products" page. The page I'm referring to is this: http://akahenry.com/shop-3/
I don't want the pictures of each product to be so large. I tried changing the dimensions in the woocommerce setting page (http://puu.sh/1PONY) but it didn't do anything except reduce the quality of the images after I regenerated the thumbnails as suggested.
I found a possible solution here: http://wcdocs.woothemes.com/snippets/set-woocommerce-image-dimensions-upon-theme-activation/
The problem is, where should I put this code? I've tried putting it in my the functions.php file of my child theme (I'm using the genesis framework, with the genesis woocommerce connect plugin), I've also tried putting it in the woocommerce functions.php, and that didn't work either. Any suggestions?