@stewart Thanks for getting back to me! I’ve been for another look and I’ve worked out a few things. I couldn’t get the layers to show as coloured in Kiri itself, but looking at the generated SVG, I can indeed see colours!
They also show up nicely and automatically become different layers in LightBurn, which I use to run my laser:
What I have noticed though, is that when I select “merged” to line all the slices on top of each other, the colour becomes white for all layers. Opening the file in Inkscape initially I thought there was nothing there, until I looked at file size, but reading the raw file showed me there’s data there.
I’m still looking at the code, but I’m guessing when ‘merged’ is selected, something about the height data could be getting removed before the height->colour code kicks in?
Thanks very much fo looking/working on this, it’s really appreciated!