[Therion] Really bad idea?

[Footleg]

I generate my maps using the colour by altitude (in the plans). I just
break my scraps wherever the altitude of the stations changes significantly
for the cave I am drawing. I pin the min and max altitude used for the
colour scale using invisible dummy stations fixed as specific altitudes, so
the colours do not keep changing as I draw more scraps. I try hard to hide
my scrap borders with pitch or floor step lines, Or under water area fills.
I've attached an example.

Footleg
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