What does a skeleton diagram typically include?

A skeleton diagram typically includes panel layouts, which serve as a blueprint for the arrangement of content within a project. This type of diagram outlines the positioning of various elements, such as text, images, and other media, allowing creators to visualize the overall structure and flow of their work. By focusing on the organization and layout rather than intricate details, the skeleton diagram helps in planning and ensures that all key components are considered during the design process.

The other options do not accurately describe the primary function of a skeleton diagram. Detailed graphics, animated visuals, and sound elements are features that come into play later in the production process, focusing on the aesthetics and engagement of the final output, rather than the foundational layout.