Multiple layers and variable cost

[0x0539]

I see that polyanya supports stitching layers and layer traversal cost. Is this possible in vleue navigator? I didn't see an example for it yet

[0x0539]

It seems to use the same scale for every layer so I guess not

vleue_navigator/src/updater.rs

Line 242 in 930912b

layer.scale = scale;