BlackGold is a personalization app developed by Dev SSP for Android devices running on version 4.3 or later. This app allows you to download and install high-quality Xperia themes developed exclusively for your Sony Xperia device.

With BlackGold, you can personalize your Xperia smartphone with graphical assets that include launcher and lockscreen wallpapers, Xperia™ Home, system UI, system colors, and platform components. The best part is that you don't need to root your device to use this app.

The app is available for free and can be downloaded from the Google Play Store. You can get the second version of the app by following the link provided on the store page.

Overall, BlackGold is a great app for Sony Xperia users who want to add a personal touch to their device. With its high-quality themes and easy-to-use interface, this app is definitely worth checking out.