Hi Hope I am posting to the correct list.
I am doing an opensearch query via the api (http://en.wikipedia.org/w/api.php?action=opensearch&search=Te). Some search results come with a tiny thumbnail image link. I would like to know if the thumbnails are defined when someone is creating a wikipedia page or if there is some kind of algorithm that automatically creates these thumbnails. Would be glad about any information about this matter.
Thanks, Linnart