src/vs/editor/contrib/colorPicker/browser/colorPickerWidget.ts/ColorPickerBody/onDidSaturationValueChange
class ColorPickerBody:	private onDidSaturationValueChange({ s, v }: { s: number; v: number }): void {
		const hsva = this.model.color.hsva;
		this.model.color = new Color(new HSVA(hsva.h, s, v, hsva.a));
	}