Hi Markus,
Indeed, because the image URLs are acquired in the process, the ALT text is not. I will note this and do a research on how to get this information if possible.
The image information is printend within the related-post-pro/includes/views/rpp.shortcode.php file on line 169:
[php]
<img src='<?php echo $rpp_post->image; ?>’/>
[/php]
What I suggest, is to put the post titles as the alt value, so changing that to something like:
[php]<img src='<?php echo $rpp_post->image; ?>’ alt='<?php echo $rpp_post->title; ?>’/>[/php]
That’s probably the best solution I can come up with right now.