public static final boolean isHiddenDirName(String name) {
		if (name.startsWith(".")) {
			return true;
		}
		// odd number of prefix chars at start of name indicates hidden name
		return (countHiddenDirPrefixChars(name) & 1) == 1;
	}
Determines if the specified storage directory name corresponds to a 
hidden directory (includes both system and application hidden directories).
@param name directory name as it appears on storage file system.
@return true if name is a hidden name, else false
Ghidra/Framework/FileSystem/src/main/java/ghidra/framework/store/local/LocalFileSystem.java