Okay, so if I understand things correctly....

The Parity License makes software (let's say, a library) available for profit and requiring open source contributions. Closed source work requires that the user purchase licenses through #LicenseZero.

The Prosperity license allows closed and open source development, but requires that in order to use the software for for-profit purposes the user must purchase a license through #LicenseZero.

Have I understood that part correctly?