Canon EOS 7D Mark II (G) Instruction Manual page 401

Color space (p.187)
You can select either sRGB or Adobe RGB. Since the camera's LCD
monitor is not compatible with Adobe RGB, the image will not look
very different when either color space is set.
Peripheral illumination correction (p.181)
If [Enable] is set, the corrected image will be displayed. If the effect
is difficult to discern, magnify the image (p.399) and check the four
corners. The peripheral illumination correction applied with the
camera will be less pronounced than with Digital Photo Professional
(EOS software) and may be less apparent. In such a case, use
Digital Photo Professional to apply the peripheral illumination
correction.
Distortion correction (p.182)
Image distortion due to lens characteristics can be corrected. If
[Enable] is set, the corrected image will be displayed. The image
periphery will be cropped in the corrected image.
Since the image resolution may look slightly lower, use the Picture
Style's sharpness parameter to make adjustments as necessary.
Chromatic aberration correction (p.182)
Chromatic aberrations (color fringing along the subject's outline) due
to the lens characteristics can be corrected. If [Enable] is set, the
corrected image will be displayed. If the effect is difficult to discern,
magnify the image (p.399).
R Processing RAW Images with the CameraN
401