Google hasn't completely redone the full collection of smiley faces and other icons, but it has taken this time to alter some of its previous work.
While most of the emoji were already yellow, certain icons depicting a baby, boy, girl, couple, and various other people utilized a pale skin tone. Rather than going down the more difficult and inefficient road of producing enough icons to account for racial diversity, Google has tweaked them to make the images look less human and more like the yellow, abstract representations of people we've come to expect from emoji.
