using CairoMakie
using DelimitedFiles
volcano = readdlm(Makie.assetpath("volcano.csv"), ',', Float64)
f = Figure()
ax = Axis(f[1, 1])
co = contourf!(volcano,
levels = range(100, 180, length = 9),
extendlow = :lime, extendhigh = :darkorange)
tightlimits!(ax)
Colorbar(f[1, 2], co)
f