Just don't eat them and you will be fine!
Yes, our theme support variant dropdown options.
yes, Gecko support one click import demo config, that mean you just need click to choose the layout. After that, you need config banner, products you want to show !
With Footer, after you import the demo layout, it already have Footer layout here. We supported a few block type and you can create unlimited Footer layout.
Yes, you can check it from https://the4.co
yes, you can add the custom CSS and paste to Custom CSS with Mobile screen
Yes, we can support you direct by email or you can post your question to our forum here: https://the4.co/forums/
you need go to Setting > Checkout and check to require customer create account, it will work Thank you