there... I am looking to do some split testing between

Hi there... I am looking to do some split testing between themes. What do I need to know before I get started? :wink: IE - when I preview different themes they look very jumbled and obviously need customizing... but am I able to customize different themes and save the themes while working between different themes in the same dashboard? Just want to know what I'm getting myself into before starting in on this. Thanks in advance!