Can you use Arcade on Pixel Values with Image Service popups?
I have a image service with a four possible values (1 to 4) and they mean something in text. With a vector feature service and arcade that would be easy.
For example 1 = Low, 2 = Moderate, 3 = High, 4 = Very High
We have 10.8.1 so maybe not possible. Upgrading to 10.9.1 soonish.