Yahoo Messenger 8 Beta : getting rid of the annoying Indigo skin

Nowadays Indigo seems to be a classy name. Everything is Indigo, from WCF to skins for every possible program or device. The new beta for Yahoo Messenger comes with the classic skin (aka Old Windows Forms style), Indigo (something that looks like Windows XP) and Maverick. Even if I changed my skin to classic, every time I restarted Yahoo I got the Indigo skin back. The only solution I found for this is going to Program Files/Yahoo!/Shared/Graphics and delete/rename the Indigo and Maverick folders. Now Yahoo looks and feels like the low profile/high utility app that it's supposed to be.