Trait Extension - Vanilla-Expanded/VanillaExpandedFramework GitHub Wiki
TraitExtension adds a couple fields to add pain factor to traits, and traits that are linked to apparel:
public float painFactor;
public bool apparelExclusiveTrait;
Here is an example of the Warcasket trait in VFE - Pirates:
<modExtensions>
<li Class="VEF.Pawns.TraitExtension">
<painFactor>0</painFactor>
<apparelExclusiveTrait>true</apparelExclusiveTrait>
</li>
</modExtensions>