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. Content is editable within two days of publishing The channel also called on people to turn out for illegal assemblies and listed the things that participants should bring along with them, showing prior planning was in the works for riots. The messages also incited people to hurl toxic gas bombs at police and MTR stations, he added. The Channel name and bio must be no more than 255 characters long Select “New Channel”
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