src/vs/base/browser/ui/actionbar/actionViewItems.ts/ActionViewItem/constructor
class ActionViewItem:	constructor(context: unknown, action: IAction, options: IActionViewItemOptions = {}) {
		super(context, action, options);

		this.options = options;
		this.options.icon = options.icon !== undefined ? options.icon : false;
		this.options.label = options.label !== undefined ? options.label : true;
		this.cssClass = '';
	}