using CairoMakie
using DelimitedFiles
volcano = readdlm(Makie.assetpath("volcano.csv"), ',', Float64)
f = Figure()
ax = Axis(f[1, 1])
co = contourf!(volcano,
? ? levels = range(100, 160, length = 9),
? ? extendlow = :auto, extendhigh = :auto)
tightlimits!(ax)
Colorbar(f[1, 2], co)
f
