Using the Flat Theme Template


I have download and installed the Yii 2 with advanced application template and everything works great.

I am interested in replacing the frontend theme with the Flat Theme - Free Responsive Multipurpose Site Template. The link is as follows:

Does anyone know of any detail documentation on How I can go about getting this template to work with my Yii2 installation.

Any help would be greatly appreciated.

Just make sure you use @frontend for the path