@storybook/theming provides a consistent theming API for Storybook addons and components. It establishes a standardized way to define and apply themes, ensuring a unified visual experience across Storybook interfaces. Offers essential theming utilities, like create, darken, and lighten, allowing developers to easily customize colors, fonts, spacing, and more. This package promotes design consistency and simplifies the process of creating cohesive and visually appealing Storybook addons that seamlessly integrate with different themes.