How to set image size

@chrimby Simple Local Avatars doesn’t itself set any image sizes. It uses whatever size gets passed to it, which typically comes from a call to get_avatar. So I’d recommend looking at how your theme is currently outputting avatars and see if there’s a request to the function get_avatar. If so, the second argument to that function is the size. The default is 96 (which will give you 96×96), but you can set that to something else (sounds like in your case it is set to 150 so you’ll want to increase that).