Range of Tones Between Black and White

This page is the CodyCross answer for the clue below from World of Sounds, Group 1343, Puzzle 5 (Splish Splash).

Question is: Range of Tones Between Black and White

and the answer is: GRAYSCALE

Word Meaning:

GRAYSCALE — (photography) A printed strip of graduated tones used to check exposure and development times.

Definitions from Wiktionary.