What is meant by "tone" in a reading selection? (e.g. imagery)

Does it mean "feeling"? happy, sad, upset, frightened

Thank you.

In a way. Read this:

http://www.lausd.k12.ca.us/lausd/resources/Literary.Terms.3.html#Tone

From http://www.lausd.k12.ca.us/lausd/resources/Literary.Terms.Menu.html

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