What method allows you to distinguish between a background image and an overlay image?

The method that distinguishes between a background image and an overlay image involves using an image widget inside a container specifically for the overlay. This approach allows you to layer images effectively, where the background image serves as a canvas and the overlay image is strategically placed on top to enhance the design or convey additional information.

By placing the overlay image within a dedicated widget, you can control its position, size, and interactivity without affecting the underlying background image. This separation of images ensures that each element can be manipulated independently, providing greater flexibility in design. Thus, this method is vital for creating visually appealing layouts where overlays, such as logos, text, or decorative elements, can be layered without compromising the integrity of the background image.

The other options, while useful in different contexts, do not specifically address the ability to distinguish and effectively manage the layering of images as described. Choosing the image file type, editing properties directly, or applying default settings do not inherently provide a means to separate the roles of background versus overlay images within a user interface or design project.