Lollipop is a theme developed mainly for CM11/AOKP/AOSPA Roms .
You must have a Rom that includes the NEW THEME ENGINE UI from CyanogenMod.
This theme was inspired by the new blue color introduced in 4.4.3
FREE ON XDA
Theme icludes :-
Themed Apps
Wallpaper
Fonts
Boot Animation
Ringtons
Alarms
Notification Sounds
This theme is still WIP and will receive many update