When it comes to customized themes, Whatsapp Lacks, but it you have had GBWhatsapp APK on your device. Stop using the boring themes, as the default themes of definitely not a worthy trail in android. Change Pre-Installed Themes are encrypted when it comes to Colorful themes, Where the File Format is Themes.xml , as it has collection of quality themes at the store. Update by changing your new themes on android device, as the app supports all personal chat screens. Conversations with beautiful custom themes are loved with latest amazing font styles.