Canon EOS Rebel SL2 EOS 200D Instruction Manual page 241

The grid lines, or histogram cannot be displayed during movie shooting.
(The display will disappear when you start shooting a movie.)
When movie shooting starts, the movie shooting remaining time will
change to the elapsed time.
Final Image Simulation
Final image simulation is a function that shows the movie as it will look
with the current settings for the Picture Style, white balance and other
shooting functions applied.
During movie shooting, the image displayed will automatically show the
effects of the settings listed below.
Final Image Simulation for Movie Shooting
Picture Style
* Sharpness (Strength), contrast, color saturation, and color tone will be
reflected.
White balance
White balance correction
Exposure
Depth of field
Auto Lighting Optimizer
Peripheral illumination correction
Chromatic aberration correction
Highlight tone priority
HDR movie
Creative filters
k Shooting Movies
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