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Telegram News
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. A Hong Kong protester with a petrol bomb. File photo: Dylan Hollingsworth/HKFP. To edit your name or bio, click the Menu icon and select “Manage Channel.” 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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