src/vs/workbench/services/themes/browser/fileIconThemeData.ts/FileIconThemeData/createUnloadedTheme
class FileIconThemeData:	static createUnloadedTheme(id: string): FileIconThemeData {
		const themeData = new FileIconThemeData(id, '', '__' + id);
		themeData.isLoaded = false;
		themeData.hasFileIcons = false;
		themeData.hasFolderIcons = false;
		themeData.hidesExplorerArrows = false;
		themeData.extensionData = undefined;
		themeData.watch = false;
		return themeData;
	}