Plot.plot({
projection: "identity",
width: 975,
height: 610,
color: {scheme: "Blues", type: "quantize", n: 9, domain: [1, 20], label: "poverty rate (%)", legend: true},
marks: [
Plot.geo(topojson.feature(us, us.objects.states), Plot.centroid({
fill: d => valuemap.get(d.properties.name),
title: d => `${d.properties.name}\n${valuemap.get(d.properties.name)}%`,
tip: true
})),
Plot.geo(topojson.mesh(us, us.objects.states, (a, b) => a !== b), {stroke: "white"})
]
})