That's great, except the test is not taking into account my personal preference. I don't use the icons very much to do things - I mostly use keyboard shortcuts. Now, I'm going to be stuck looking at that garbage all day.
Furthermore...76 participants? That doesn't prove anything.
And also people who somehow know that a UI without colors (or some other moronic, one-size-fits-all idea) is a good thing for every other user on Earth, for ever and ever, Amen.
Furthermore...76 participants? That doesn't prove anything.