Which statement is true about globally installed themelets in Liferay?

Globally installed themelets in Liferay are designed to be reusable components that can be utilized across all themes within the Liferay ecosystem. This flexibility allows developers to create themelets that provide common functionality and design elements that can enhance various themes without the need for duplication. By being available globally, developers can ensure consistency and streamline the development process by leveraging these shared components across multiple themes.

The nature of global installation allows for greater efficiency as updates to a themelet will automatically reflect in all themes using it, simplifying maintenance and ensuring design consistency across the platform. This is in contrast to components that are restricted to specific themes, which would limit their usability and require more effort to manage.

Other options highlight misunderstandings about themelet integration and their scope of application. For instance, the incorrect choices imply restrictions or additional installation requirements that would not align with the intended use and flexibility of themelets in Liferay.