How does Liferay ensure functional integrity through Themes?

Liferay ensures functional integrity through Themes primarily by controlling how data is displayed without altering backend functionality. This is important because it allows developers and designers to manipulate the user interface and experience while keeping the underlying logic, data structures, and functionality of the application intact.

By using Themes, Liferay separates presentation from business logic, ensuring that any aesthetic or layout changes do not interfere with how the application operates on the backend. This abstraction is crucial for maintaining a consistent user experience and ensures that any updates or modifications to the backend components do not inadvertently disrupt the visual aspects of the site.

The approach emphasizes modularity and reusability, allowing for a flexible yet stable environment where developers can focus on creating visually appealing and user-friendly front-end designs. As a result, themes can be updated or changed without requiring significant changes to core functionality, thus preserving the overall integrity of the application.