Display BBM on BlackBerry 10

You are curious about the look of BlackBerry Messenger (BBM) on BlackBerry 10? N4BB recently gave a new view of the fuel leak is contained in the latest OS RIM, BlackBerry 10. Of the leak can be seen that fuel up with a face that is more energy efficient. By using a black theme, RIM tried to make the battery consumption to decline by 25 percent. Meanwhile, if we want to do optimization using OLED screen, then the rate will be greater efficiency, which is about 75 percent. Following the display of fuel leaked Blackberry 10:

What do you think about display above?