Final answer:
A black background can make other colors stand out and increase contrast, highlighting elements of a project and setting a specific emotional tone.
Step-by-step explanation:
Creating a black background in the project section of an artistic or visual presentation is often done for several reasons. A black background can make other colors pop, helping to draw the viewer's attention to the central elements of the project. It can provide a high contrast against lighter elements, which is beneficial if the goal is to make certain aspects of the design or information stand out. Furthermore, black evokes a certain emotion or tone within the project, potentially conveying sophistication, mystery, or depth. Therefore, when you want to highlight particular content or create a specific mood, choosing a black background can be an effective design strategy.