This is a theme for CM10 & AOKP,its purpose is to enhance the Android UI without compromising the vanilla look.
The Dark version features inverted dialogs and the following inverted apps: Contacts, Messaging, Gmail, Email, Calendar, Google Now, Google Talk and Play Store.
Stock battery is available as "circle" in settings for AOKP/Liquid.
HOW TO APPLY: Install the app, go to settings/themes of your ROM, select system theme and REBOOT. After that apply this theme and reboot again.
If you get: "Sorry, this theme is missing assets for your device's screen size", APPLY IT ANYWAY.
DARK GMAIL (just install) https://www.dropbox.com/s/vi958mibz6b0v2z/DarkGmail.apk
Official thread @ XDA Developers: http://forum.xda-developers.com/showthread.php?t=1615767
