The monitor’s Contrast is set rather too high by default as is indicated by the characteristic bend of the gamma curves in the right of the diagram. The practical consequence is that the lightest halftones will be displayed the same as pure white.
When the Contrast setting is lowered in the monitor’s menu, the gamma curves get better and close to ideal. Thus, if you care about accurate color rendering, you should not increase the Contrast setting above 70 (it’s 75 by default).
Besides excessive Sharpness, the Contrast setting is too high in the Cinema mode. The gamma curves soar up in the right part of the diagram, light halftones merging with each other.
The same goes for the Game mode.
The color temperature setup is accurate enough. The difference in the temperature of different grays is small in the Normal and Warm1 modes except that dark-gray is rather too cold. There is no deflection towards pinkish or greenish hues. The temperature dispersion is larger in the Cool1 and Cool2 modes, both white and dark-gray deflecting from the average. The Warm2 is altogether bad in this respect. Well, I don’t think anyone will want to use Warm2 because its color temperature is below 5000 K, producing a very warm-looking, yellow-red image. I can remind you that the optimal color temperature for a home or office monitor is usually within 6500 to 7500 K. The Normal mode is the best in this respect.
The monitor’s color gamut is very good. It not only covers the sRGB color space but also delivers pure red, yellow and green.