I'm tempted to go to the effort of taking down the screen names of EVERYONE here who can't understand why some people don't love the green battery icon, and re-visit that list the next time people whine about visuals in TouchWiz and how they hate these colors or that color, or if they comment on a great new visual update to Android when Nougat is released.
No one is saying that they're soaking their pillows at night over this icon, simply that they preferred the uniform white icons. How is it that people don't realize that there are others who enjoy what they enjoy for reasons that may differ from you? Everyone here knows it's a "#firstworldproblem" and obviously life could be worse than this, but so what. I bet 95% of everything you folks talk about with your friends and coworkers on a daily basis is a "first world problem".