My client has asked me to change the position of the navigation arrows on the lightbox, and also to start it maximised by default.
Investigating this I can see in the Lightbox Evolution documentation I need to add “lightbox[maximized]=true” after the url to the file.
so updating line 14 in the last file you provided:
<a data-rel="<?php the_ID(); ?>" href="<?php echo wp_get_attachment_url(get_post_thumbnail_id(get_the_ID(), 'full')); ?>?lightbox[maximized]=true" class="lightbox"><?php echo get_the_post_thumbnail(get_the_ID(), 'image-thumb-1', array('class' => 'product-slider-image')); ?></a>
Is this correct?
Also I see the lightbox offers several themes, we would prefer to use the “evolution” theme, but I am not sure how to change this in your theme.