Nice idea though I think the color scheme could be made a lot more intuitive without losing the progress in contrast. Muddy brown for near-sea level doesn't do

Nice idea though I think the color scheme could be made a lot more intuitive without losing the progress in contrast. Muddy brown for near-sea level doesn't do it for me. Blues - Slightly above sea level Green - Above that Brown - Low mountains Orange/purple - high mountains Red - below sea level (i.e. danger)