ok this is just a small bug in the texture.xpr but the images for the homebutton-6a.png and the homebutton-6-shadow.png are switched. I only found this by helping someone fix a mod they had done and couldnt figure out why the homebutton-6-shadow.png would show up first and the homebutton-6a.png would fade in. Then i opened up the texture.xpr in xbmc skin editor and had a look. I know this does not really matter because its not normally used but they are still backwards.

P.S. I'm looking foward to the 1.0 release but no rush take your time

1.0 release doesnt even use homebutton-6, I think its already been removed from the textures.xpr during a spring clean, we will try to make the 1.0 build as mod friendly as possible, so I will take a look into it later.