sorry, I feel like a bit of a n00b, but I really like and want this lockscreen theme, on cydia however the locklauncher mod is not supported for the lastest iphone firmware and I can't find minimalist battery.
The icons are themed, yes. All the tweak does is allow you to put whatever apps you want on the lockscreen. So I have anicons on both the lock (white battery & signal) & homescreen (black icons).
You click on the app, then unlock your phone, and it will go to that app. If you put phone and messages, you can tap phone, then message, unlock and it takes you to phone, then press the home button and it takes you to messages.
Since anicons doesn't do anything, it doesnt bother it.