Canon EOS Rebel T4i 18-135mm IS STM Lens Kit Instruction Manual page 177

Final Image Simulation
The final image simulation is a function that allows you to see the
effects of the Picture Style, white balance, etc., on the image.
During movie shooting, the image displayed will automatically reflect
the effects of the settings listed below.
Final image simulation for movie shooting
Picture Style
* All settings such as sharpness, contrast, color saturation, and color tone will
be reflected.
White balance
White balance correction
Exposure
Depth of field
Auto Lighting Optimizer
Peripheral illumination correction
Highlight tone priority
k Shooting Movies
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