The basic purpose is: Display the status of an order in WooCoomerce site
Here follows in more detail what it does:
This class can create custom order statuses to help manage Woocommerce Web sites better.
It can register filters and action to have the order status class be called when a WooCommerce site is displaying the status of one or more orders in a page of the site.
The class can set the CSS styles that will be used to display each order status using colors with values that can be passed to the class as parameters.
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