The optimal dimension of the avatar on Telegram is 512px by 512px, and it’s recommended to use PNG format to deliver an unpixelated avatar. Choose quality over quantity. Remember that one high-quality post is better than five short publications of questionable value. The visual aspect of channels is very critical. In fact, design is the first thing that a potential subscriber pays attention to, even though unconsciously. How to build a private or public channel on Telegram? The main design elements of your Telegram channel include a name, bio (brief description), and avatar. Your bio should be:
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