add missing cyclical scale type

mbostock · mbostock · commit 7e689b1e3857 · 2023-03-14T14:12:03.000-07:00
diff --git a/src/scales.d.ts b/src/scales.d.ts
@@ -21,6 +21,7 @@ export type ScaleType =
   | "band"
   | "ordinal"
   | "sequential"
+  | "cyclical"
   | "diverging"
   | "diverging-log"
   | "diverging-pow"
diff --git a/test/plots/seattle-temperature-amplitude.ts b/test/plots/seattle-temperature-amplitude.ts
@@ -9,7 +9,7 @@ export async function seattleTemperatureAmplitude() {
     y: {label: "↑ Daily temperature variation (Δ°F)", zero: true},
     aspectRatio: 1,
     color: {
-      scheme: "rainbow",
+      type: "cyclical",
       legend: true,
       tickFormat: Plot.formatMonth()
     },
