Telegram Android app: Open the chats list, click the menu icon and select “New Channel.” A vandalised bank during the 2019 protest. File photo: May James/HKFP. 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. Add up to 50 administrators With Bitcoin down 30% in the past week, some crypto traders have taken to Telegram to “voice” their feelings.
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