The SW Wealth Die extension adds a wealth die to the character.
The contents of the Currency section in the Inventory tab is replaced with a wealth die.
This wealth die behaves like Skill and Attribute dice. You can add bonuses and penalties, change the wild die, boost and lower it, double click to roll it, and use ctrl + mouse wheel to change it.
The Currency section label is changed to Wealth.
On the Party Sheet, on the Inventory tab, the "Coins Carried By" section is replaced with a list of character Wealth dice. 
You can also use effects to alter this trait.
[Wealth +1d]
increases Wealth by one die type when rolled.  
[Wealth +1]
adds one to the Wealth roll.  
[Wealth -2]
applies a -2 penalty to Wealth rolls.

This works in SWADE and SWADE Pathfinder.