vl.markPoint({filled: true})
.data(abTemp)
.encode(
vl.x().fieldT('Year'),
vl.y().fieldQ('Temperature_Anomaly'),
vl.opacity().value(.5),
vl.color().fieldQ('Temperature_Anomaly').scale({
"domain": [-1, 0, .05, 1.8],
"range": ["#0000ff", "#88ccff", "#f98d5d", "#ff0000"]}),
vl.tooltip().fieldO('Month'),
vl.column().fieldO('Month').sort(["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"])
)
.width(200)
.height(150)
.render()