[Therion] Altitude colors range

[Marco Menchise]

Hello,
I use to color maps by scrap altitude.

Lately I noticed Therion color gradient starts from 0 m altitude to maximum
cave altitude. Because caves don't reach 0 m almost all color range is
unused and most scraps are colored with similar colors. If I remember
correctly some time ago Therion used all color range because color gradient
extended from minimum cave altitude (not 0 m) to maximum.

Am I missing something? Is there a way to use all available colors?

Thanks,
Marco
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