A vandalised bank during the 2019 protest. File photo: May James/HKFP. In the next window, choose the type of your channel. If you want your channel to be public, you need to develop a link for it. In the screenshot below, itβs β/catmarketing.β If your selected link is unavailable, youβll need to suggest another option. 2How to set up a Telegram channel? (A step-by-step tutorial) The optimal dimension of the avatar on Telegram is 512px by 512px, and itβs recommended to use PNG format to deliver an unpixelated avatar.
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