@ReverendSanty
Sure. Click on your avatar at top of screen (upper right) and head to My Settings. Then choose Avatar and upload your image.
More info under Help pages located next to your avatar above. (https://community.roku.com/t5/help/faqpage/title/icon)
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102