The Power BI team has been doing a lot of incredible work. The most recent update which I got wind of is Custom Formatting of measures is now supported for Visuals.
This has already been deployed to the Power BI Service and if you download the
latest version of Power BI Desktop (Version 2.83.5894.961 as at 03 Aug 2020) it has the new features. This means you can use this TODAY!
Previously this was only supported for tables and matrixes.
Click through to see how it looks in Power BI. It’s easy, and that’s a good thing.