What identifies a module as a theme contributor in Liferay?

In Liferay, a module is identified as a theme contributor through specific module headers that must be included in the module's configuration. The headers that are essential for this identification are 'Liferay-Theme-Contributor-Type' and 'Web-ContextPath'.

The 'Liferay-Theme-Contributor-Type' header defines the type of theme contribution the module provides. This allows Liferay to recognize and differentiate theme modules from other types of modules that may be present in the environment. Additionally, the 'Web-ContextPath' header indicates the context path where the theme resources can be accessed, which is crucial for the system to load the theme correctly within its architecture.

The presence of both headers is necessary for successful theme integration and to ensure that Liferay can properly manage and serve the contributions that the module is intended to provide.

The other choices either lack one or both of the required headers or focus on elements that do not directly denote the module's role as a theme contributor within Liferay, such as a generic 'Module-Type' header or version numbers, which are not specific to theme identification.