public static Icon getIcon(String id) {
		return themeManager.getIcon(id);
	}
Returns the Icon registered for the given id. If no icon is registered for the id,
the default icon will be returned and an error message will be dumped to the console
@param id the id to get the registered icon for
@return the actual icon registered for the given id
Ghidra/Framework/Gui/src/main/java/generic/theme/Gui.java