We see a red flag when there is understaffing. We don’t have any flag for overstaffing. If you would like to edit these rules, it is easy.

In the Calendar sheet, select cell D7.

Click on Conditional Formatting menu and choose Manage Rules.

Open Conditional Formatting Rules
Open Conditional Formatting Rules

 

Click on Edit Rule.

Conditional Formatting Rules Manager - Icon sets
Conditional Formatting Rules Manager – Icon sets

 

We can see the rule used.

Edit conditional formatting rule to modify the red flag for understaffed days
Edit conditional formatting rule to modify the red flag for understaffed days

 

You can change the icons used for the three options (+ve number, 0, -ve number).

After changing, Click OK in the dialog boxes and apply changes.