Perhaps you were too busy to notice, but last Spring, Google changed its favicon from its upper-case first "G," to its lower case second "g."
Which prompted me, and others, think that Garth Brooks, and his logo, might have a beef.
And now Google, this week, has added to their lower-case g favicon all sorts of Googly colors to brighten up your Internets searching experience.
Somewhere, someone at Google is earning at least six figures to figure this crap out.
