The Inventory Number can be automatically generated based on your own pre-determined codes set in Administrative Options.

The color in the Inventory Number field automatically changes to denote the works sales status: Red means the work is sold, Green means the work is available, Yellow means the work is on Loan or Consignment, Light Pink means the work is on Reserve, and Black means Inactive (otherwise unavailable).

The color of the stripe across the center of the form denotes the works ownership as it came to you from its source: Royal Blue denotes that the work is consigned to you, Turquoise means the work is owned by you, Purple says that you own the work with a partner or partners, and Fuschia denotes a non-inventory item that you have in your database (something in a client's collection, perhaps). A handy color key can be made viewable along with the Works module.