Editing Planes of Existence (section)

===== Backdrop =====
The final, and thinnest, crystal sphere is known as the Backdrop. It is an iridescently-colored sphere dotted with the stars we see in the night sky, which are actually enormous holes in the sphere that allow light in from from the Astral Sea. At night, the Backdrop is an opaque black color, but when the sun rises, it affects the Backdrop, causing it to become transparent. The titans created the Backdrop as a reaction from their early mortal creations, who expressed annoyance at their world being continually lit, even when the sun disappeared.