The main design elements of your Telegram channel include a name, bio (brief description), and avatar. Your bio should be: 5Telegram Channel avatar size/dimensions 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. Telegram Android app: Open the chats list, click the menu icon and select “New Channel.” The Channel name and bio must be no more than 255 characters long
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