Basic ERPNext Website Question

Hi All

Ok so this is probably a basic question and I must have missed it somewhere. But my client has a HTML5, css theme they would like to use as there website for ERPNext.

How do I go about applying this as the website theme for ERPNext. We obviously still want the ERPNext functionality such as the products, contact forms, login etc but we want it to fit in with there theme and look and feel of the company.

Is this possible and how?

If not I suppose I will need to take the current bootstrap for ERPNext and extend it to look as close to what they are looking for.
Also is it Frappe that controls the website or ERPNext?

Any suggestions. Thanks

@wwalford There is limited themeing capability, though you can override any bootstrap class.

Check Website Theme in Website module