I am using Woocommerce 4.2.0 and a child theme of Storefront. In the product page, I'd like to make the thumbnails images as big as the main image (692 pixels).
I have this in my functions.php:
/**
* Modify image width theme support.
*/
function iconic_modify_theme_support() {
$theme_support = get_theme_support( 'woocommerce' );
$theme_support = is_array( $theme_support ) ? $theme_support[0] : array();
$theme_support['single_image_width'] = 692;
// $theme_support['thumbnail_image_width'] = 324;
remove_theme_support( 'woocommerce' );
add_theme_support( 'woocommerce', $theme_support );
}
add_action( 'after_setup_theme', 'iconic_modify_theme_support', 100 );

