src/vs/workbench/services/themes/browser/fileIconThemeData.ts/FileIconThemeData/noIconTheme
class FileIconThemeData:	static get noIconTheme(): FileIconThemeData {
		let themeData = FileIconThemeData._noIconTheme;
		if (!themeData) {
			themeData = FileIconThemeData._noIconTheme = new FileIconThemeData('', '', null);
			themeData.hasFileIcons = false;
			themeData.hasFolderIcons = false;
			themeData.hidesExplorerArrows = false;
			themeData.isLoaded = true;
			themeData.extensionData = undefined;
			themeData.watch = false;
		}
		return themeData;
	}