How To Change Gallery Thumbnail Size?

Gallery Thumbnail Size

If you want to manually change the aspect ratio of the Gallery Thumbnails in WooCommerce then add this code to your child theme to crop them hard to the size you specify.

php
add_filter( 'woocommerce_get_image_size_gallery_thumbnail', function( $size ) {
return array(
'width' = 150,
'height' => 150,
'crop' => 1,
);
} );

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