Hoi @hansvanoverzee,
Nice, you can stretch your stack in APP as well with added saturation.
In the right panel, enable colors+, slide saturation to about 20% and click on apply. You’ll see more colours in the stack ;-)
If you change the sat. (saturation) threshold slider, you can adjust how the saturation is applied in your data. the threshold value is a threshold that protects the sky background. Usually the value of 0.25 is really good not to inject chromatic noise into your background.
Let me know if this works for you ;-)
Mabula