Today surajt2cool@xda-developers has been port / update for Seraphic season 6 this is make you Xperia J comeback life because this update you can see Xperia Theme like Xperia JellyBean 4.3 + Up thanks for surajt2cool for awesome update !
How to i can install this update ? | Follow step by step !

Features:

New framework allowing theming
New home allowing theming
added two themes
Amazing Spiderman 2
Woody Theme
more themes coming soon…

REquirements:

Xperia J with Seraphic Season 6 rom

Tutorial:
Download here
and then download mod zip from that link
Place zip file in sdcard
Wipe dalvik cache
flash it in CWM and enjoy