Now the colors are over-saturated and the contrast is too high.

To reduce this effect, let us change the target colors' range to make it closer to the original range in the window grayed out above.

So instead of 0 for min Red, let's enter 50.

Let's increase the min Green Target value to 12.

We could play with upper limits as well, but these settings will produce a good result.

Let's render the image again.