Conditional formatting on pivot table

Hello everyone!
i tried to apply a conditional formatting to a pivot table, but when i refresh data the formatting get lost.
It would be useful to format a pivot table on cell value base…for example if a result is more or less than a specific value or if fields have a particular label. This can help reading the table easily.
Is there a way to conditional format a pivot table without losing it at refresh?

I’m using LibreOffice on a Windows 10 Pro Platform.
Thanks in advance for helping

Luca Biraghi