6How to manage your Telegram channel? It’s easy to create a Telegram channel via desktop app or mobile app (for Android and iOS): Content is editable within two days of publishing 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.
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