4How to customize a Telegram channel? 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. According to media reports, the privacy watchdog was considering “blacklisting” some online platforms that have repeatedly posted doxxing information, with sources saying most messages were shared on Telegram. To upload a logo, click the Menu icon and select “Manage Channel.” In a new window, hit the Camera icon. The imprisonment came as Telegram said it was "surprised" by claims that privacy commissioner Ada Chung Lai-ling is seeking to block the messaging app due to doxxing content targeting police and politicians.
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