When arguments come down to the color of the bike shed, I'm sorry it is just "RESISTANT TO CHANGE." The closest anyone has come to a valid argument in any of these threads is that the monochrome icons make it harder to distinguish between them. Of course there's no data to back that claim up, but it at least sounds like a valid usability concern. Everything else said, over and over again, beating the dead horse into the ground, is nothing more than "I don't like change." It's boring enough to hear this the first time. Did we really need a new thread to say it all again?