Variables are crucial for maintaining a consistent design while also making it flexible and scalable. By using design variables, you can streamline the design process and make updates more efficiently. This approach is especially important in large projects, where design consistency across multiple components or platforms is necessary. For example, when working with CSS variables, designers and developers can easily manage and adjust styles across the entire system.

In Figma, variables are stored in a way that allows for easy updates throughout the design system. This makes it easier to implement changes across the board, ensuring that your design stays aligned without having to revisit each individual component. By using variables in optimization, designers can improve efficiency, reduce redundancy, and make the system more manageable as the project evolves.