src/vs/editor/contrib/colorPicker/colorPickerWidget.ts/ColorPickerWidget/constructor
class ColorPickerWidget:	constructor(container: Node, readonly model: ColorPickerModel, private pixelRatio: number, themeService: IThemeService) {
		super();

		this._register(onDidChangeZoomLevel(() => this.layout()));

		const element = $('.colorpicker-widget');
		container.appendChild(element);

		const header = new ColorPickerHeader(element, this.model, themeService);
		this.body = new ColorPickerBody(element, this.model, this.pixelRatio);

		this._register(header);
		this._register(this.body);
	}