This section explain how you can create traits. Creating traits is useful if you want to add special traits to your races.
To create a trait choose Menu -> File -> New -> Trait or click the New trait button on the toolbar (identified by a gladiator with a star). An input dialog is shown. Type here the name of the trait. You can use alphanumeric chars (A-Z, 0-9, a-z), spaces and underscores(_) only. The name should be unique. When you confirm your choice the program scans the library looking for other traits with the same name. If no other traits with that name are already stored in your library a panel like the following is opened in the window.

If another race has the selected name you will be asked to change it. If you choose not to change it when you save the new race the older one will be overwritten.
The panel conatins one field for each trait (main) field. An overview and the official explanation of fields can be found on the Wesnoth Wiki. Here is reported a brief description of each field following the order used on the panel.