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 Channel name and bio must be no more than 255 characters long Telegram users themselves will be able to flag and report potentially false content. A new window will come up. Enter your channel name and bio. (See the character limits above.) Click “Create.” 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.
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