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. The main design elements of your Telegram channel include a name, bio (brief description), and avatar. Your bio should be: Choose quality over quantity. Remember that one high-quality post is better than five short publications of questionable value. The Standard Channel Each account can create up to 10 public channels
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