What design options do you have for creating page backgrounds?

What will be an ideal response?

In the Backdrop panel, you can set a background color, drag an image from
the Filmstrip to use as a backdrop, or click the backdrop thumbnail and choose
a graphic from the categories in the background picker. You can tweak the
opacity of the backdrop image or graphic, so that it blends with the selected
background color. For a preset background graphic, you can also set the color
of the graphic overlay.