Is anyone else's phone have a gray battery on the notification bar or is there's still green mine went gray after the last update.
The battery icon is actually semi- transparent with the latest HTC One update to 4.4 and Sense 5.5. We added a photo as a wallpaper and the photo shows through the icon:
It is only gray while charging. Otherwise it is a solid white. This follows closely to the design standards used by the stock UI from Google for Android 4.4 and higher.