First of all, thanks so much for maintaining this addon!
After I used the feature to show colors on tidyplates dots, I wondered if the same was possible for SUF. In the end it was too hard to make it work that way, but instead I have made some weakauras that mimic the effect. I find this really helpful on fights like Council. With thanks to Woz who made the WA code to determine the colors.
You can find the strings for weakauras
here.
Preview of the left side of my screen
here. The bars are shadowed unitframes, debuffs plus colored borders are weakauras, affdots must be loaded to get the colors.
Of course you will have to move them around to where you want them and so on.