The optimal dimension of the avatar on Telegram is 512px by 512px, and itโs recommended to use PNG format to deliver an unpixelated avatar. Telegram desktop app: In the upper left corner, click the Menu icon (the one with three lines). Select โNew Channelโ from the drop-down menu. The main design elements of your Telegram channel include a name, bio (brief description), and avatar. Your bio should be: Telegram Android app: Open the chats list, click the menu icon and select โNew Channel.โ How to Create a Private or Public Channel on Telegram?
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