We figured that it made more sense to have Ethnio mimic the page that it is placed on, rather than have you select whether Ethnio should be secure or not. Thus, if Ethnio is on a secure page, it is secure. If it is on an unsecure page, it will be unsecure. The code will be the same either way.
If you're curious what part of the code detects what type of page it has been placed on, it is the "src=//" portion of the code.