Honor 8 Pro - Manual (Page 150)

Colour correction
Colour correction mode adjusts colours to make it easier for colour vision impaired users to
distinguish between different parts of the screen.
Enable this mode with caution, as it may affect your phone's battery.
1
Open Settings.
2
Touch Advanced settings > Accessibility and then turn on the Colour correction switch.
3
Touch Correction mode and then select a correction mode.
Accessibility Features
144