This skin is designed for PlayerPro Music Player, either the free version or the pro version. It's an advanced music, video, and radio player for Android devices. To activate this skin after installation, open the Settings tab from within PlayerPro's options menu and select your desired skin from the "Select Skin" dropdown box in Look & Feel. PlayerPro Blue Wonder Skin is compatible with PlayerPro V4 and V3; however, it is NOT compatible with PlayerPro Legacy (V2). This app provides an easy-installation guide. Plus, the app is easy-to-use and free to download. The app works with Android 9.0 or above.