src/vs/workbench/contrib/preferences/browser/settingsTree.ts/SettingTreeRenderers/showContextMenu
class SettingTreeRenderers:	showContextMenu(element: SettingsTreeSettingElement, settingDOMElement: HTMLElement): void {
		const toolbarElement = settingDOMElement.querySelector('.monaco-toolbar');
		if (toolbarElement) {
			this._contextMenuService.showContextMenu({
				getActions: () => this.settingActions,
				getAnchor: () => <HTMLElement>toolbarElement,
				getActionsContext: () => element
			});
		}
	}