public static ResourceFile getApplicationRootDirectory() {
		checkAppInitialized();
		return app.layout.getApplicationRootDirs().iterator().next();
	}
Returns the application root directory.   An application root directory is a
directory containing one or more modules.  In development mode there may be multiple
application root directories, which can be retrieved via
{@link #getApplicationRootDirectories()}.
<p>
In an installation of the application, there will only be one application root directory.
<p>
<b>Note:  Be sure you understand that there may be multiple application root
directories in development mode.</b>  In general you should not be using this method for
searching for files yourself, but instead using
the various <code>find*</code> methods of this class.

@return Returns the application root directory.
@see #getApplicationRootDirectories()
Ghidra/Framework/Generic/src/main/java/ghidra/framework/Application.java