protected String findLookAndFeelClassName(String lookAndFeelName) {
		LookAndFeelInfo[] installedLookAndFeels = UIManager.getInstalledLookAndFeels();
		for (LookAndFeelInfo info : installedLookAndFeels) {
			String className = info.getClassName();
			if (lookAndFeelName.equals(className) || lookAndFeelName.equals(info.getName())) {
				return className;
			}
		}

		Msg.debug(this, "Unable to find requested Look and Feel: " + lookAndFeelName);
		return UIManager.getSystemLookAndFeelClassName();
	}
Extracts java default colors, fonts, and icons and stores them in the
{@link ThemeManager} and updates the {@link UIDefaults} by installing GColors for all
color values and installing any overridden fonts or icons.
Ghidra/Framework/Gui/src/main/java/generic/theme/laf/LookAndFeelManager.java