Altitude colours?

I have since long been looking for at way to display altitude as colours as opposed to shadows (false light) as if the sun was shinig from north-west). Who ever saw that on the northern hemisphere?

So I stumbled over Locus and there were the right discussions. However I cannot make it work. Purchased Pro with no success and then found indications that it was/had been in a test channel. Activated that, but with similar meager results.

Now what is the current right way to get those altitude colours? Must special maps/overlays be imported? Where are the settings, and what parameters should be chosen?