There are 4 fields available for flag football plays and formations. The Red Zone Offense field is available to everyone and used (with the Whiteboard theme) in the free flag football play designer. The other 3 fields are available only to pro subscribers.
These screenshots show the Grass theme but all flag football fields are available in the Grass, Whiteboard, and Chalkboard themes as well as any custom themes that you create as a pro subscriber.
FreeRed Zone Offense
ProRed Zone Defense