Editting standard Skins?

[SEE]

I would like to change the default Spitfire skin to have Duckegg Blue under wings/body rather than the Black and White. Is it just a case of importing the default skin and editting the image using a graphics software utiltiy (i,e. CorelDraw) then re-saving it as a Jpeg?

Any info (or maybe someone has allready done this) would be appreciated as I know little about custom skins. I also notice that there are two skins folders - one in Steam folder and the other in the 1Cpublishing folder but empty - is there any reason for two folders?

Thanks.