I've been working with magento 2.2 for about 2 months. Another individual set up our website to this point. He used the "main website" in Stores|Settings|Stores. He used the default Store view, and he used the default Luma theme. And... he made all of his edits to the website in the default luma theme.
As I've been reading I've realized that this is not good policy, and at least a new theme should have been created.
So here are my questions:
is it ok to use the default main website store?
is it ok to use the default store view?
is there a way for me to copy the edited Luma theme into a new theme?
if I'm missing the point, what is the best way to resolve this issue?
Thanks for everyone's input.