Conditional Formatting Card

I have a measure displayed in a card visualization.  The measure is ([Revenue January] / [Revenue December]) - 1 , displaying the %diff this month compared to previous month. Now, I would like this Card visual, or any other available custom visual, to be displayed in Green or Red font, depending on the value. A very easy thing to do in excel, but cant seem to find any decent solution in Power BI.

Anyone know how to solve this? Is there any custom visual out there that solves this problem?

Thanks