Telegram is one of the most used messaging apps for mobile phones. It is considered as one of the alternatives for those who do not want to use WhatsApp. The app has better security measures and it also includes several options to customize the user experience.
You can download different skins to give Telegram a more suitable user interface. It depends on the selection of colors and design that you prefer. Thanks to the open source nature of the app it is easier to create your own skin for Telegram, or you can download the designs of other users.