What should you use to define an overall look and feel for your project?

Choosing a Global Volume is the best option to define the overall look and feel of your project. In Unity, a Global Volume allows you to apply post-processing effects and other visual adjustments that impact the entire scene. These effects can include color grading, ambient occlusion, bloom, and other visual enhancements that create a consistent atmosphere throughout your project, ensuring that all elements of your scene contribute to a cohesive aesthetic.

Using a Global Volume ensures that the settings are universally applied to all objects within the scene, making it a powerful tool for achieving a desired style or tone. This is particularly important in projects where a unified visual approach enhances storytelling or gameplay.

On the other hand, while Local Volumes can be used for more specific areas of a scene, they only affect a limited range, and thus are not suitable for defining an overall look. Scene Settings and Lighting Settings, while important for managing aspects of a scene, are typically more focused on specific configurations rather than the comprehensive visual style provided by a Global Volume.