How do I change the logo in the customer checkout

[KeepitLocal]

I can't seem to find a way to change an old logo on my checkout page. I googled it and looked it up here and it seems the way to get into the checkout layout has changed. I can't get into the page to change the logo - help - thanks

[sharpiemarker]

@KeepitLocal 

Click your avatar, top right of screen and click Account Settings. Click Business Information category on the left. Click “Update” for Business Information section on the right. Click the Avatar on the middle to upload a new photo. 

[vimissions]

This answer does not work, this option is not in my profile (under the avatar).