FlyAway Simulation's FSX Convair CV-580 Mega Pack Plane Textures Are Dark verus Normal Textures

I recently downloaded and installed FlyAway Simulation's FSX Convair CV-580 Mega Pack package. After selecting an airline and loading a flight I found that the aircraft texture did not look right.....the aircraft appeared to be very dark as if was in the evening. Just wondering if there a way to correct this issue possibly by adjusting the texture file?