🖥️ On desktop: Click on the 'Account' tab on the left side of the page. Then, click 'Change Picture'. From here, simply open a picture directly from your desktop! Use the cropper function to select the area of your picture you'd like displayed and click 'Upload'.
📱 On cell phone/tablet: Tap 'More' on the bottom right of the screen. You'll then be shown the menu, use that oh-so-powerful thumb of yours to lightly tap 'Account'. Then, tap 'Change Picture' and select the picture you'd like to open! Use the cropper function to select the area of your picture you'd like displayed and tap 'Upload'.
You're all set!