The optimal dimension of the avatar on Telegram is 512px by 512px, and itโs recommended to use PNG format to deliver an unpixelated avatar. Image: Telegram. A vandalised bank during the 2019 protest. File photo: May James/HKFP. To upload a logo, click the Menu icon and select โManage Channel.โ In a new window, hit the Camera icon. But a Telegram statement also said: "Any requests related to political censorship or limiting human rights such as the rights to free speech or assembly are not and will not be considered."
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