src/vs/base/browser/ui/actionbar/actionViewItems.ts/SelectActionViewItem/constructor
class SelectActionViewItem:	constructor(ctx: unknown, action: IAction, options: ISelectOptionItem[], selected: number, contextViewProvider: IContextViewProvider, selectBoxOptions?: ISelectBoxOptions) {
		super(ctx, action);

		this.selectBox = new SelectBox(options, selected, contextViewProvider, undefined, selectBoxOptions);
		this.selectBox.setFocusable(false);

		this._register(this.selectBox);
		this.registerListeners();
	}