Keep OEM decals when changing body colour

This is regarding painting customisation. However specifically regarding changing the paint colour of the car yet leaving the OEM decals in place / and or changing the colour of OEM decals in place.

Perfect example would be the Porsche gt3 RS - if i want to change it to a custom colour - outside of the manufacturers colours - i then lose the GT3 RS logos…. yes i can then livery edit them in. But why should we have to that?