Third party Xperia themes maker Ven1aONE has released two more themes for Xperia devices on Play Store i.e. eXPERIAnZ Grey & Gold Theme. Both themes work on Xperia devices running android 4.4+ ( rooted as well as non rooted devices, compatibility with android 4.3 unknown ).
You get customized home screen & lock screen wallpapers, navigation keys like Android 5.0 Lollipop, colored status and navigation bar with themed system UI.
eXPERIAnZ Grey Theme
Download eXPERIAnZ Grey theme from below Play Store link.
eXPERIAnZ Gold Theme
Download eXPERIAnZ Gold Theme from below Play Store link. It is a paid theme for Rs 50/$0.74.
If above themes work on your non rooted Xperia running android 4.3, let us know. Drop your comments below.