Android 5.0 Lollipop has a dramatic new look dubbed Material Design. The Android 5.0 Lollipop theme for Xperia phones by an XDA member JanM RS will bring the official material design wallpaper, Navigation keys, lock screen, home screen and more to your Xperia devices.

Android 5.0 Lollipop Theme Installation Instruction

Installing Android 5.0 Lollipop theme on your Xperia phones running on android 4.4.2+ is simple. Download [HERE] the theme and install it like any APK file (no root requires). For Android 4.3 running phones, the theme requires root access and superuser mod to work. Once installed, apply the theme. To do so, long press in Xperia Home -> Themes -> choose Android 5.0 Lollipop theme and press “apply”. Or, go to Settings -> Personalization -> Xperia Themes -> choose Android 5.0 Lollipop theme and press “apply”. (source – XDA)