Date Picker Theme Settings

In the theme customizer, under theme settings (gear icon) there is a section called Shipping Date Picker

Configurable settings:

Restricted dates: This is a comma separated list of dates that are RESTRICTED. Example dates we put in here would be for like Christmas Day or New Year's Day.
Max Date: Whatever date is entered here, it how far the calendar goes

Monday-Sunday checkboxes: You have the option to choose which days during the week are allowed for shipping on the calendar. \