barrykooij/related-posts-for-wp — pull request #27 by robneu (2014-08-22 06:03:51+00:00)
Title: Set Default Image Size to Thumbnail

I noticed that right now you're using a default of post-thumbnail which isn't set anywhere. As it stands, the full size image is displayed. Did you mean to use the default WordPress thumbnail size? If not, please disregard. :)