Conditional Formatting on a Field without Aggregation

Hi all,

I have to apply a conditional formatting on a field of a table in a dashbaord, but it seems to be mandatory to aggregate on some other fields, is it not possibile to apply the conditional formatting just on the value of that row?

I just want to have a green background when RECEIPT DAYS is below 7 days and red when it is above 7 days.

Any suggestion?

Thanks,

Andrea