Decorative Trim Placed on Top of a Plain Surface

This page is the CodyCross answer for the clue below from Photography, Group 2011, Puzzle 3 (Camera Flash).

Question is: Decorative Trim Placed on Top of a Plain Surface

and the answer is: OVERLAY

Word Meaning:

OVERLAY — (transitive) To lay, spread, or apply (something) over or across (something else); to overspread.

Definitions from Wiktionary.