AC_Colours for Pure 0.30 1.0b

Just a little tweaking for the latest Pure version 0.32 to try and brighten them up compared to the included Pure ppfilters. I must have a strange monitor setup because the included ones are so dark on my system. I have that problem with most ppfilters for Sol as well so I always go on the assumption that it's my system. It's so bad that I can't use most of the really good filters out there because of how dark they render on my monitor.

You should no longer have to switch to another filter and back to get the exposure right. Should work fine on launch of a session. Also, I ran 5 races with these and they never crashed so hopefully that problem is fixed as well. Only difference between the two included filters is how I handled the lighting. One has slightly more exposure and less gamma. The other has less exposure and more gamma.

It was brought to my attention that the first version was overexposed. Not sure why because on my end it looked great, but I did some adjusting and drastically lowered the exposure number. Hopefully it looks better on other people's computers. The strange thing about this version is that on my end this is too dark when I first launch the game. I have to switch to another filter and then back to this one to get the brightness where I want it. It's totally opposite to the version I posted yesterday. Like I said, i'm new to Pure so i'm still trying to figure things out.