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. 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. Add up to 50 administrators 2How to set up a Telegram channel? (A step-by-step tutorial) To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon.
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