kalelong

Hey Guys i got a Problem. In my version of RSS the light conditions are so bad that the grasslands around the KSC are just dark. I know that the earth in RSS is way higher then Kerbin in the original version and I expected that the light would be a bit darker but not like this. I watched some videos where RSS was used and everything looks quite sunny. So anybody knows a patch or sth. like this ? I'm driving KSP on a mac 10.11