Hi
Go to atelier/woocommerce/content-product.php and find this section on line 138:
// Width, Height parameters
if ( $sf_product_multimasonry ) {
$masonry_thumb_size = sf_get_post_meta( get_the_ID(), 'sf_masonry_thumb_size', true );
if ( $masonry_thumb_size == "large" ) {
$classes[] = 'col-sm-6 size-large';
$width = 'col-sm-6';
$thumb_width = 800;
$thumb_height = 650;
} else if ( $masonry_thumb_size == "tall" ) {
$classes[] = 'col-sm-3 size-tall';
$width = 'col-sm-3';
$thumb_width = 400;
$thumb_height = 800;
} else {
$classes[] = 'col-sm-3 size-standard';
$width = 'col-sm-3';
$thumb_width = 400;
$thumb_height = 320;
}
– Kyle