Invader is a super clean and one of a kind. This theme
has everything sounds, springboard animations, animated weather, and
lockscreen theme. Invader is my best work yet. I put as much detail as
I could into everything from the passcode lock to the icons and
UIbuttons. Credit goes to Alien1974, Bombmom and romg78 for animations
and widgets. the font is called Elektora and is found in cydia.

This theme is well over 200mb as a whole so search for the extras packages 1 & 2

this theme is now 5.1.1 compatible