These are my thoughts. The alpha channel may act as a mask. It blocks parts of the shirts. It looks like the collars and arm sections. I have not experimented with modifying the alpha channel. The alpha did change from 2013 to 2014. I think the team colors in the jersey tab(or maybe the colors in the team tab) has an effect on the colors fans wear. The alpha (mask) blocks these sections. The two sections that Bliss referred to in the picture are for the female fans and the mask blocks them, which may explain why Bliss can't remove them. The alpha channel masks similar sections on the male fans jerseys. But then again I may be completely insane.
