iMovie editing/publishing

Differentiating a visual interface language for consumer, productivity, and pro applications involves considering the needs and goals of the target audience for each type of application. Consumer applications are typically designed for a wide audience and are meant to be easy to use without the need for a manual or extensive training. As such, these types of applications often have larger handles, knobs, and sliders to make them more intuitive and easier to use.

Productivity applications, on the other hand, are designed to help users complete specific tasks efficiently and accurately. These applications may have a more complex feature set and require more specialized training or knowledge. As such, the visual interface language for these types of applications may be more detailed and precise, with smaller handles and controls to allow for more precise adjustments.

Pro applications are designed for professional users who have extensive knowledge and experience in a specific field. These types of applications often have a very complex feature set and require specialized training to use effectively. The visual interface language for pro applications may be very detailed and precise, with small handles and controls to allow for precise adjustments and customization.

Overall, a lot of thought goes into the construction of a single interface element, as designers must consider the needs and goals of the target audience and the overall aesthetic of the application. It's important to create an interface that is easy to use and intuitive, while also providing the necessary functionality and precision for the specific type of application.