src/vs/workbench/services/preferences/browser/keybindingsEditorModel.ts/KeybindingsEditorModel/getCommandDefaultLabel
class KeybindingsEditorModel:	private static getCommandDefaultLabel(menuCommand: ICommandAction, workbenchActionsRegistry: IWorkbenchActionRegistry): string | null {
		if (!Language.isDefaultVariant()) {
			if (menuCommand && menuCommand.title && (<ILocalizedString>menuCommand.title).original) {
				const category: string | undefined = menuCommand.category ? (<ILocalizedString>menuCommand.category).original : undefined;
				const title = (<ILocalizedString>menuCommand.title).original;
				return category ? localize('cat.title', "{0}: {1}", category, title) : title;
			}
		}
		return null;
	}