Hi Dgrooms,
If you want to change the default pen color of a parameter, you'll have to open the gsm file (open library part) and change it in the object parameters window interface.
Personaly... I always avoid to change the standard library parameters... Specially pen sets.... Remember that if the library is updated you will have to do it all again!
Instead of changing each and every pen parameter of the library, you could create your own pen set (based on the standard one, changing the pen colors (and thicknesses) and apply it to your project views, layouts, drawings, etc...
HTH.