src/vs/editor/contrib/colorPicker/browser/colorPickerWidget.ts/ColorPickerBody/onDidHueChange
class ColorPickerBody:	private onDidHueChange(value: number): void {
		const hsva = this.model.color.hsva;
		const h = (1 - value) * 360;

		this.model.color = new Color(new HSVA(h === 360 ? 0 : h, hsva.s, hsva.v, hsva.a));
	}