Forum:Thumb cat previews

I was wondering if anyone understood wikia code enough to help with this issue. I included File:Maids.jpg on Nana's page, but the image features Hika very prominently. So I don't want it to represent Nana, and moved it to the bottom.

For some reason when I go to Category:Characters and see Nana in that top box, I see this picture, and I'm not sure why. Is there some code I could include, or some way of rearranging things, so that it is one of the pictures of just Nana that gets displayed?

No matter how long I edit wikia I can't seem to figure out how the system selects which image to select as a thumbnail preview. Like is it random, in order, alphabetical, first, last... size? +y@talk 00:17, January 24, 2012 (UTC)


 * Nobody knows eh? I'll ask on the main Wikia I guess. +Yc 01:50, October 26, 2012 (UTC)