View source for Error messages LnF

<span style="color: #ff9900">'''Error messages LnF'''</span> 

#Error messages should always explain exactly what the user did wrong. If user cannot immediately understand what the message means; it is a bug! 
#If the same error message is used for two different bugs - it is a bug! 
#Errors should appear in the top of dialogues / windows in red color in bullet format. All the errors that are registered should be listed.
#The title of dialog must be "Error" if the message lets users know that they can NOT do that action. And "Warning" if still allowing users to continue that action.
#The GUI should not refresh before showing the errors (if possible)<br>

[[Category:LnF_guidelines]]