Plot.plot({
marginBottom: 100,
x: {label: null, tickRotate: 90},
y: {label: "↑ gold", labelAnchor: "top", reverse: true},
color: {type: "sqrt", scheme: "YlGnBu"},
marks: [
Plot.cell(olympians, Plot.group({fill: "count"}, {x: "sport", y: "gold"}))
]
})