This filter returns the portrait thumbnail size when a gallery is configured to display two columns of thumbnails per row.
add_filter('maxgalleria_thumb_size_portrait_two_column', 'thumb_size_portrait_two_column', 10, 1); $thumb_size
An array containing the thumbnail width (default = 550) and height (default = 825).
add_filter('maxgalleria_thumb_size_portrait_two_column', 'thumb_size_portrait_two_column', 10, 1);
function thumb_size_portrait_two_column($thumb_size) {
}
Defined in maxgalleria-hooks.php.
Used in maxgalleria-image-gallery.php.