Canon EOS REBEL EOS T5 1200D Instruction Manual page 181

Shoot by Ambience Selection
(7) Brighter
The picture will look brighter.
(8) Darker
The picture will look darker.
(9) Monochrome
The picture will be monochrome. You can select the monochrome
color to be black and white, sepia, or blue. When [Monochrome] is
selected, <0> will appear in the viewfinder.
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