EDIT: Still claims that Standard with a Constrast of 50 and Brightness of 36 is best and Color temprature on Reddish or custom on 96 96 96.
If you have nvidia cards you can have Digital vibrance of type 55%.
This is for 100hz, has not managed to get it good in 144hz.
Think the screen is too high.
The reason I bought the screen was mainly for the managed 144hz, which it does, BUT the colors get very sad then, a bit like a pair of washed clothes and the blackness becomes bad.
This can be corrected to some extent, with ICC profiles etc but it never gets really good.
Best result in terms of image, I think you get in 60Hz, Picture mode on Standard, Brightness 36 and Gamma 5.
Blur Busters Strobe Utility to tweak the screen I think is overrated, then you can just as well run at 144Hz with the same settings as above in order to really good gaming flow. Alternatively you can run Picture mode Movie to get some "nicer" colors in 144Hz.
Had I known all this before I bought it I would probably have bought an IPS screen instead which can handle 60Hz but has better image and color rendering.
Anyone who has found a setting for 144 or 120Hz (without ICC profile) who gets like when driving 60Hz is happy to hear from me but I think it is difficult.