Not sure what's going on as the colour properties are identical, but when Eve is selected as the home world and EveStockAtmosphere is set to True, it has Kerbin's colour. It still has Eve's other properties so game play isn't affected. This doesn't happen with Scatterer loaded; Scatterer sets Eve's atmosphere properties as it should. This also doesn't happen when EveStockAtmosphere is set to False.
To reproduce, make sure no visual add-ons are added at all. Just ASP, Kopernicus 1.4.5-4 and its dependencies, and set Homeworld = Eve and EveStockAtmosphere = True.
Not sure what's going on as the colour properties are identical, but when Eve is selected as the home world and EveStockAtmosphere is set to True, it has Kerbin's colour. It still has Eve's other properties so game play isn't affected. This doesn't happen with Scatterer loaded; Scatterer sets Eve's atmosphere properties as it should. This also doesn't happen when EveStockAtmosphere is set to False.
To reproduce, make sure no visual add-ons are added at all. Just ASP, Kopernicus 1.4.5-4 and its dependencies, and set Homeworld = Eve and EveStockAtmosphere = True.