I‘m suprised about the discussion, which color is more realistic and which not. For my opinion the main goal should be to integrate this scenery into the environment and this includes the gras colors. There should be an option to use default P3d, ORBX LC and Germany south (and maybe a third one for the realistic colors in the developer eyes). No more, no less.
And seriously, for a scenerypricing of more than 30 Euro this it’s a minimum requirement for me, that a scenery fits nearly perfect in the rest of my scenery environment (what SW EDDM actually not do).