In literature, the tone refers to the attitude of a writer towards something. In "The Gift of the Magi," the author O. henry describes how unprosperous Della and Jim spend a lot of money to buy each other something they will not be able to use. Similarly, in "The Necklace," Guy de Maupassant, Mathilde Loisel and her husband devote the last years of their lives to pay out for a borrowed necklace which turns out to be fake.
Mercutio thinks that Romeo is dishonorable for not fighting and so he wants to fight Tybalt. He draws his sword and directs Benvolio to draw his sword in an effort to break up the fight because the Prince banned fighting.