When creating a formula to color a field only when it fulfils a specific condition based on another field's value, i wanted that formula to work without the supporting field showing up on the DB List.

In this example i wanted to color the Next Job fields when the remaining days were <7 and this works if the field Remaining is also visible on the DB List. 

If i don't add this field into the DB List all the fields will color regardless of the condition applied.

Basically, i wanted all this working before generating... without resorting to the "manual" checkbox in the web application.