They’re here, some say, “at last”: Emojis, those universally coded images that punctuate your text messages and social media comments or serve as symbolic stand-ins for feelings best expressed, say, by Ghost With Tongue Sticking Out or Women With Bunny Ears, will finally reflect racial realities. According to many reports, Apple has rolled out five new shades of old emoji for the developers testing its upcoming version of iOS and OS X; while there’s no announcement yet of plans for Android devices, one expects that will come with time. It’s a big deal if only for the massively widening scope...