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Recommended settings MI 8 
(These settings are optional and depend on your personal preferences). 

HDR + is recommended for most situations. Use HDR + Enhanced only if you need details in very bright areas, such as bright sunlight. 

BSG mod settings> 

Input model 
> Interface style - Pixel 2 
> Rear camera - Pixel III XL (Use the Pixel XL model if you like photos with less noise and sharpness.) 
> Front camera - Pixel III XL 
> Configuration - Pixel 2018 ZsIR Hdr + 

HDR + Options 
> Min. ISO limited exposure - Off. 
> The minimum number of frames - 24
> The maximum number of frames is 24 
(use 6-6 if you need instant ZSL processing, but the loss of detail in dark areas is obvious) 
(Use 14-23 if you use HDR + Enhanced more often than HDR +). 

Do not change anything in the night vision settings. 

Final quality jpg HDR + - 100 
Disable zoom in portrait mode - On. 
Save to DCIM / Camera - Off. (Optional, you can turn it 
on, but only a few users have reported problems with it, such as deleting photos.) Disable Pixel 3 AWB - On. (build San1ty). 
Improved HDR + in portrait mode - Off.
* Enable “Add Aux to Camera Switch” only when using MI 8. (Use MGC_6.1.021_V2d ++ if you need this option) 

Libs - Xlib V2 or default depending on your personal contrast preferences. (Use what you like, but I recommend Xlib V2 personally. 
Simple explanation. 
Default (Pixel 3) - Enhanced colors / contrast with more noise and less sharpness. 
Xlib V2 - Natural colors / contrast with less noise and more clarity . 
you can read it in detail below. 

default - a library Pixel 3 by default saturated, less harsh, and crumpled shadow detail edge enhancement, both in Pixel 3. at first glance it may look nice, but in most cases may not be accurate. .
Xlib V2 - it is configured with the features of the phone XS Smart HDR. Personally, I like it more than the default Pixel library, because it does not suppress shadows and supports natural colors, such as the XS phone, as well as the Pixel HDR + algorithm for setting the trend. It's like the best of both worlds, but feel free to test before you stop at one. 
Eszdman - it looks almost the same as compared to standard libraries, but it has better shadow detailing, which can positively / negatively affect the contrast depending on the scenario. 
Savitar - Natural colors, but slightly less shadow detail compared to Xlib V2 and a grainy look.) 

Saturation 
Rear camera 
> Glare saturation - 1.0 
> Shadow saturation - 1.6
Front camera 
> Glare saturation - 1.0 
> Shadows saturation - 1.6 

Correct 
> Viewfinder processing - turn on “Motion” and “AE”. 
There is no need to change anything else in the “fix” section for our device.