What to try Night mode on stock EMUI 8.0 ?!
-Accept all permissions, manually turn on Enable system changes in app properties
-Settings–>BSGMOD–>Input Model–>Pixel XL for rear and front.
-Now you need to restart the app.
-Settings–>BSGMOD–>Saturation–>Back Camera–> and Highlight Sat to 2.0 and Shadow Sat to 2.6 (better 1.8 and 2.5, cause color saturation is toooo high)
-Again restart the APP its required.
-Settings–>Advanced–>turn ON all the switches except HEVC/H.265 option.
-Restart the APP.
-Now use your Gcam for Portrait shots, Panorama, HDR+, Photosphere (not so good), Blur and SlowMotions (not works).