All your customization is done by clicking the settings cog on your Infinity Store page, located at (yourusername).infinity.airbit.com. From here you can choose which pages are displayed, how they are laid out, the color scheme, and more.
The Highlighted License is exactly what it sounds like - the license that will be shown foremost in your Licenses section. Use this as an opportunity to push your most popular license to your visitors.
This is also where you will manage configurations - find out more about how configurations work here.
Learn how to customize your Pages here
Learn how to customize your Styles here
Click here for a full guide to customizing your Infinity Store