What is typically associated with a background layer in Adobe Animate?

A background layer in Adobe Animate serves as the foundational layer that supports the overall composition of the project. This layer typically sets the stage for all other elements—graphics, animations, and interactive components—found in the layers above it. By establishing a consistent visual context, the background layer enhances the viewer's experience and ensures that foreground elements stand out.

While layers intended for interactive elements focus on user interaction and response, the background layer is not usually where interaction occurs. Similarly, though static images or video elements can appear in the background, they do not solely define its purpose, which is more about providing context and spatial depth. The background layer also does not specifically host keyframes for the main timeline; keyframes are found throughout various layers according to the animation structure, and their positioning isn't limited to the background. The keyframes in the main timeline facilitate the control of animation sequencing across all layers, not just the background.