How to upload and edit a profile picture
To upload a profile picture go to your Profile and in the upper right corner tap on . In the opened section tap on your image. You can choose an image from your Gallery or take a photo using camera of your device. Choose an image and upload it, then click "Save" in the upper right corner of the screen. You can choose only one picture.
To change an image go to your Profile and in the upper left corner tap on . Then choose the picture you want to use, and tap on the Save button.
At the moment the optimal resolution for uploaded images is 1440 pixels on the longer side. For example, if you upload a rectangular image, the longer side of it must not exceed 1440 pixels.