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. Hashtags A vandalised bank during the 2019 protest. File photo: May James/HKFP. 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. Invite up to 200 users from your contacts to join your channel
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