Thread:CMONYALL/@comment-4995735-20121219191517/@comment-3991817-20121219211542

This has puzzled me ever since I started this wiki. I know that the first picture on a page has the biggest chance of become the thumbnail for that page, but like you say sometimes it is a quote of the first piece of text on the page that makes it to become the thumbnail. And the transparent part of picture is sometime white and sometimes black.

I don't know of any sure way to make a particular picture the thumbnail, but if you google for it on wiki help pages I'm sure there is something to be found. But at the moment it is not one of my priorities for the wiki.