After you’re done setting up the menu, you’ll probably want to set up the Homepage as well. White is a multipurpose theme and it comes with 3 different homepage layouts:
To set up any of these layouts as your homepage, navigate to Pages > Add New. After you create a new page, just set its title and choose the page template you want to use.
Once you create the Homepage, navigate to Settings > Reading and set the front page options as shown on the screenshot below:
Then, you’ll need to go to Options > General Settings and choose the blocks you want to be visible on your homepage, and you’re done!