Now you're in the Subscribe Section this is where you will choose the look and text that a user will see when making an in-app purchase.
Choose the various colors associated with the screen's aesthetic - Main Background Color, Highlight Background Color, Border Color, Header Text, Button Text Color and Disclaimer Text Color.
Then, upload a Header Image (Max Width: 825 px, Max Height: 300 px, 72dpi, PNG or JPG), this can be whatever you want, in the example there's a yoga pose for a yoga magazine.
On the right side, you can edit the text. Do note that the Subscriptions Options you see on this page are random examples, you will set the actually Subscription Prices in Distribution Dashboard.
*NOTE* ONCE YOUR APP IS LIVE, ANY CHANGES YOU MAKE HERE AND SAVE WILL AUTOMATICALLY UPDATE IN THE APP.