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 Channel name and bio must be no more than 255 characters long Choose quality over quantity. Remember that one high-quality post is better than five short publications of questionable value. Those being doxxed include outgoing Chief Executive Carrie Lam Cheng Yuet-ngor, Chung and police assistant commissioner Joe Chan Tung, who heads police's cyber security and technology crime bureau. To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon.
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