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. Some Telegram Channels content management tips Don’t publish new content at nighttime. Since not all users disable notifications for the night, you risk inadvertently disturbing them. Add the logo from your device. Adjust the visible area of your image. Congratulations! Now your Telegram channel has a face Click “Save”.! A Hong Kong protester with a petrol bomb. File photo: Dylan Hollingsworth/HKFP.
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