Telegram Login Widget for external websites is here. When you use Telegram login for the first time, the widget asks for your phone number and sends you a confirmation message via Telegram to authorize your browser. Once this is done, you get a two-click login on every website that supports signing in with Telegram.
With version 4.7 for iOS, you can change what your Telegram looks like in the new Appearance settings. Choose between four different themes, including a minimalistic one (“Day”) and two dark themes (“Night” and “Night Blue”). The “Day” theme also allows you to pick an accent color for the entire app, like pink or purple.