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Telegram News
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. 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. Add up to 50 administrators Telegram users themselves will be able to flag and report potentially false content. Unlimited number of subscribers per channel
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