You analyze your soft white vellum and sense that the item is largely free from merchant alteration restrictions.
The creator has also provided the following information:
Your vellum is used to unlock the potential of things held in your other hand.
A feathery soft white vellum will unlock a Plumed Hair Do-Hickey from Tier 1 to Tier 2.
You need only RAISE your vellum while holding a compatible piece of equipment in your other hand.
Your vellum may not be altered or changed in any way.
You get no sense of whether or not the vellum may be further lightened.