Bigrontheman, that's something that will be reverted to stock values in SARCASM 2.0, but you can edit the environmentsystem.ini in Flight fodler yourself to have the stock transitions again:
try replacing SARCASM 1.5 values with these taken from 2.0 beta I have:
[Day] SunHeight=0.240 SunBrightness=1.00 SunLightLevel=0.99 SunRadiance=0.00 TwilightLensFlare=0.0 SunColor=0.680,0.694,0.641 AmbientColor=0.340,0.340,0.375 SkyColor=0.200,0.506,0.804 HorizonColor=0.806,0.908,0.967 FogColor=0.706,0.816,0.902 SunSpecularColor=0.810,0.762,0.740 HDRSunColor=1.000,1.000,1.000 LightSrcModifier=1.0 [Day1] SunHeight=0.150 SunBrightness=1.00 SunLightLevel=0.95 SunRadiance=0.00 TwilightLensFlare=0.0 SunColor=0.555,0.560,0.538 AmbientColor=0.330,0.330,0.365 SkyColor=0.216,0.447,0.745 HorizonColor=0.811,0.815,0.937 FogColor=0.580,0.647,0.722 SunSpecularColor=0.810,0.762,0.740 HDRSunColor=1.000,1.000,0.900 LightSrcModifier=1.1 [Twilight1] SunHeight=0.008 SunBrightness=0.20 SunLightLevel=0.80 SunRadiance=0.10 TwilightLensFlare=1.0 SunColor=0.980,0.490,0.220 AmbientColor=0.201,0.201,0.214 SkyColor=0.408,0.455,0.490 HorizonColor=0.422,0.218,0.084 FogColor=0.357,0.247,0.192 SunSpecularColor=0.980,0.490,0.220 HDRSunColor=1.000,0.500,0.250 LightSrcModifier=2.5 [Twilight2] SunHeight=-0.080 SunBrightness=0.00 SunLightLevel=0.35 SunRadiance=0.10 TwilightLensFlare=0.0 SunColor=0.436,0.363,0.170 AmbientColor=0.146,0.156,0.185 SkyColor=0.278,0.282,0.353 HorizonColor=0.220,0.150,0.200 FogColor=0.043,0.056,0.092 SunSpecularColor=0.436,0.363,0.170 HDRSunColor=0.436,0.363,0.170 LightSrcModifier=4.0 [Night] SunHeight=-0.170 SunBrightness=0.00 SunLightLevel=0.00 SunRadiance=0.0 TwilightLensFlare=0.0 SunColor=0.0000,0.000,0.000 AmbientColor=0.062,0.113,0.254 SkyColor=0.062,0.080,0.164 HorizonColor=0.077,0.116,0.349 FogColor=0.051,0.055,0.125 SunSpecularColor=0.0000,0.000,0.000 HDRSunColor=0.0000,0.000,0.000 LightSrcModifier=4.0
of course replace just these strings I posted, leave all the others intact!!! Best to just adjust the lines I marked in red
and sorry for late reply, been away form CA for quite a long time, needed a break from modding