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ИНТИ | Институт нефтегазовых технологических инициатив 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. How to build a private or public channel on Telegram? Clear ZDNET RECOMMENDS To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon.
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