Your Homepage Template designs the home site of your blog. The editor is comparable to the website editor but with some extensions. You can add all the sections you used to in the website editor but there are two new sections called "Header" and "Navigation".
The "Header" section is an introduction to your blog and allow you to give your blog your own style. You can give your blog a Header and a description. Also you can add a bottom border to separate your header from your blog posts.
The "Navigation" section allows your users to navigate threw your blog. You can choose to show arrows to visualize the function.
And the final new section is the "Posts" section. In this section you can decide how to format your blog posts and how they will be displayed. You can choose to show pictures, Read More or an arrow after the label. Also you can create an border between your posts to separate them from each other.